While much smaller in volume, there's also a whole sub-culture of people opposed to "emulation", a subset of which sees FPGA's as borderline "cheating", and/or who would otherwise love to print pin-compatible replacements for old chips.
Heck, even being capable of printing replacements for 6581/8580 (SID - sound chip from Commodore 64) or 6526 (IO chips used in the C64 and others that were notorious for burning out) would get a whole lot of retro-enthusiasts excited, as there are a bunch of FPGA reproductions of the SID which are way overkill.
Doing that would be possible by matching processes that were getting dated by 1980...
