IBM choose the Intel 8088 over the 68000 for the IBM PC, which was more popular than IBM expected. Since the IBM PC was heavily documented (you could get not only schematics, but BIOS listings for it), it was easy (if you were careful) to clone and with Microsoft underselling the other operating systems for it, it because very popular. This caused Intel to push billions into making their chips faster and expand into 32 bits. Unix workstations, which mostly started out on the 68000, typically switched to RISC architectures as Motorola couldn't keep up speed wise (it didn't have the budget that Intel did due to the Wintel duopoly, and Motorola had other concerns than just chip design).
And I don't see how one could expand the 68k into a 64-bit design, but that was still a few years down the road by the time the 68k was in decline (sad to see, I was a fan of the 68k architecture).
And I don't see how one could expand the 68k into a 64-bit design, but that was still a few years down the road by the time the 68k was in decline (sad to see, I was a fan of the 68k architecture).