ROI in unmanned retail is decided by four variables, not by the machine. This report quantifies each and shows the payback math that separates winners from write-offs.
Across the portfolio, the top quartile of sites returned 2.4x the bottom quartile at identical machines. Footfall with dwell beats footfall alone; a machine where people wait out-earns one where they pass.
Sites that cut sub-3% SKUs every 30 days held gross margin 6-9 points higher than sites that let the menu sprawl. Variety within a category beat variety across categories for repeat rate.
Every point of uptime below 95% compounded into lost repeat purchase, not just lost instant sales. Telemetry-driven restock cut stockouts by half versus fixed schedules.
Median payback was 9 months at high-traffic sites, 14 at mid. Sites under RMB 5k monthly yield at 60 days were pulled; holding them 'for the brand' destroyed portfolio IRR. Discipline on exit mattered as much as discipline on entry.
Terminal ROI is an operations score, not a product score. Optimize location, menu, uptime and exit discipline in that order, and the machine almost does not matter.