There's no acceleration here. Vintage Macs are 100% obsolete. They can't get any more obsolete than that. They can, however, become MORE relevant for hobbyists through the development of new software for them.
Yes. Discrete 74 series TTL logic ICs were quite obsolete; CMOS versions replaced them. But now with new generations that are not level-compatible with the TTL versions, the TTL versions are even more obsolete.
What could be better than that?