[Coco] Why was the Coco abandoned?

[Michael Robinson]

I've heard that an engineering problem in the GIME chip lead to the
demise of the Coco.  I've heard that the GIME was too expensive.

1990, wasn't the 386 out at that point?

In the old days when the Coco was hot, there was real competition in the
personal computer market.  It wasn't just Apple and vendors selling
Windows compatible PC's.  Even the Alpha is gone now.