That might be true, but creating the Amiga 500 and 2000 was also a no-brainer: the original Amiga (later retconned to A1000) had a detachable keyboard (= expens

That might be true, but creating the Amiga 500 and 2000 was also a no-brainer: the original Amiga (later retconned to A1000) had a detachable keyboard (= expensive), but limited expansion capabilities, so launching two new models, a cheaper all-in-one design and a more expensive version with detachable keyboard and a larger case with more expansion capabilities was pretty obviously the way to go. What all the Commodore CEOs unfortunately failed to do was invest adequately into R&D to keep the Amiga competitive. Instead, they treated the existing lineup as a cash cow for far too long. The new models which hit the market from 1990 onwards were too little too late and couldn't fend off the eventual insolvency...