Why do some robots stay in use, and others stop?

Cases of physical AI in everyday places, and the reading behind them. Facts from public sources only; every entry lists its sources.

1999–2014Case AIBO: still in use after Sony stopped repairsSony ended production in 2006 and repairs in 2014. An independent repair shop kept owners’ robots working with parts from retired units. Maker left; kept in use by some owners