Is a US Service Network a Real Moat? Count the Spare-Part SKUs

"US-based support" is the cheapest sentence in robotics marketing. Every imported brand says it, no brand quantifies it, and a buyer comparing two machines has no way to test it before the first failure.

There is a test, and it takes five minutes. Open the dealer that sells the robot and count what else the brand has on that shelf — batteries, chargers, propellers, spare-part kits, service plans, training. A support organisation that exists leaves a trail of stock-keeping units. One that does not, does not.

I ran that count on 11 August 2026 across a single US storefront carrying 886 products and 60-odd robot and drone brands, so that no brand gets an easier shelf than another. Titles were classified by keyword — battery, charger, spare, part, kit, propeller, dock, module, licence, training, care — which is crude, but crude in the same direction for everyone.

The count

The bottom half of that table is the interesting half. AGIBOT's entire presence is two listings, both dexterous hands, both out of stock. EngineAI's is one listing: the robot. LimX's is two: the robots. These are platforms selling at $24,800 to $75,600, and if the battery dies in month seven there is nothing on the shelf to buy.

The contrast is not "Chinese versus Western" — Unitree tops the table and Deep Robotics is third, both Chinese, both with genuine consumable lines behind them. The contrast is shipping versus being supported, and it is visible in the catalogue before it is visible in your downtime.

What a supported product actually looks like

Inspired Flight is the clearest example I have seen this year of support priced as a product rather than promised as a value. Its service plans are SKUs with prices: for the IF800, Starter coverage is $500 a year, Pro $2,000, Elite $5,000, with two-year versions at $3,500 and $8,000; for the heavier IF1200, $750, $3,000 and $7,000, with two-year versions at $5,000 and $11,000. Pilot training is $2,500 for one seat and $12,000 for five. Spares are on the same shelf: an IF800 spare-parts kit at $3,850, battery kit $4,000, charger $500, propeller set $550, landing gear $400.

Then the manufacturer's own store does something I have not seen another robot maker do. Each aircraft is sold in four tiers, and the tiers are the support plans, added at exactly the price they cost standalone:

The IF1200 ladder does the same thing with its own plan prices: $32,000, $32,750 (+$750), $35,000 (+$3,000), $39,000 (+$7,000). Both ladders reconcile to the cent against the standalone plans. Our view: that arithmetic is worth more than any support claim on a brochure, because it is falsifiable. You can check it yourself, today, in two browser tabs.

Deep Robotics sits in the same tier by a different route — charging docks at $4,800 and $4,900, an X30 battery pack at $5,900, a gas-detection module at $7,900, a pan-tilt camera module at $12,999, and an inspection-platform licence at $29,000. Unitree's 21 support listings run from a $100 charger to a $5,000 industrial battery, plus wrists, waists, LiDAR and docking stations.

The catch: a priced network can still be an unusable one

Having parts on a shelf is necessary, not sufficient. In our teardown of Universal Robots spare-part pricing, the same distributor that sells UR arms sells three Size 2 wrist joints for $19,521 — 44.8% to 49.9% of a whole UR5e — and a full set of six joints for $46,071, which is between 105.8% and 117.9% of a UR12e. On EAVision spray drones we rebuilt an airframe from the dealer's own parts list and landed at 17.3% above the price of a new one.

When a repair costs more than a replacement, "we support it" resolves to "we will sell you another one." So the honest version of the metric is two questions, not one: are the parts listed, and are they priced below the machine?

Where the moat actually is

Three observations, offered as judgement rather than fact.

A service network is a moat only where the machine is a tool. Drone operators fly to a schedule; a grounded aircraft costs money per day, which is why the drone brands on that shelf carry deep consumable lines and the research-humanoid brands do not. Nobody has yet had to ground a fleet of humanoids.

The absence of a price is itself the signal. Unitree's own web shop currently lists eight different machines — B1, B2, B2-W, A2, As2 EDU, three R1-D variants and the H2 Plus — at exactly $100,000 each, and the H1 at $90,000 under a product title that reads "Contact us for the real price." A vendor that will not quote you a machine is not going to quote you a four-hour service response.

Support survives ownership changes worse than products do. When we revisited Clearpath after the Rockwell acquisition, the product line was alive and upgraded, but the storefront that used to sell it was running 84 listings with not one Clearpath robot among them and 81% placeholder prices. The robots were fine. The way you used to buy a part for them was gone.

What to ask before you sign

1. Show me the consumables list, with prices, from a seller I can check. Not a support page — a catalogue.
2. What does a battery, a charger and a spare-parts kit cost, as a percentage of the machine?
3. Is the service plan a priced SKU or a paragraph? If it is priced, the vendor has already decided what the risk is worth.
4. Where does the warranty clock start? We found three different starting points across six cobot brands — shipment, delivery and installation — and on an ocean freight lane that difference is weeks of cover.
5. If the answer to (1) is "contact us," price the machine as if it has no support, because for the first year that is functionally true.

Sources

• Maverick Drone Systems — full catalogue of 886 listings, brand-level counts and all parts/service prices, read 11 August 2026
• Inspired Flight store — IF800 and IF1200 configuration ladders and spare-part pricing, read 11 August 2026
• Unitree official shop — machine listings at $100,000 and the H1 title, read 11 August 2026
• GrabaRobot, Robot spare parts as a share of TCO (2 August 2026)
• GrabaRobot, Spray-drone spare-parts teardown (5 August 2026)
• GrabaRobot, Cobot warranty and service terms compared (29 July 2026)
• GrabaRobot, What happened after the acquisition: Clearpath, Bear Robotics, iRobot (8 August 2026)

*Limitations: the brand counts come from one storefront on one day, and a brand may be supported through channels that storefront does not show. Classification was by keyword on product titles, so a mis-titled part is a miscount. The reconciliation between the IF800/IF1200 tier ladder and the standalone plan prices is arithmetic on published numbers, not a statement from the manufacturer.*