[COFF] Why did Motorola fail?

Forty years ago Motorola 680x0 CPUs powered most good Unix boxen, with the exception of this upstart SPARC thing. And then they were gone. I'm trying to remember why. Can anybody help me? I recall claims that Moto didn't put enough effort into development, but was this primarily a technical or a commercial issue? Greg -- Sent from my desktop computer. Finger grog(a)lemis.com for PGP public key. See complete headers for address and phone numbers. This message is digitally signed. If your Microsoft mail program reports problems, please read http://lemis.com/broken-MUA