Around the same time, I was looking into if it was possible to buy SID chips separately in quantity to use on a new 68000 arcade board, instead of the usual AY-3-8910s. That went nowhere pretty fast.
They might have been able to sell a lot of SIDs to the arcade market, but they were probably production bottle-necked just for their own use.
Probably just as well. Depending on Commodore for a crucial chip could would have been a disaster.
