You also have to remember at that time, there were no real successful "computer" companies, no real corporate model on how to run one. Each of the "major" computer companies back then had something else to fall back on. The most successful computer company at the time (TANDY) pulled right out of the computer game in that time, preferring to let AST build the computers and brand them with the Tandy name. AST lasted a year after that.
That, and the fact that Gould treated CBM like a personal bank account, and no real marketing of the Amiga in North America (I don't remember one Amiga commercial on TV, but the C64 had tons), lead to the downfall.
In Canada the CDTV and CD32 had no marketing what so ever (even though the CDTV was sold here) No one knew of the CD32 and most people still don't. Infact, I know gamers who were lining up for a SEGA 32x system, because SEGA marketed it to the hilt. Commodore, nothing.