I'd rather find a way to hook a new monitor for my old NeXT Turbo Station. The old one is busted.
I could still be fun to do tough. there are a few pieces of NeXT software I'd like to look at again for inspiration.
I would love to be able to run a bunch of legacy operating systems just to study their inner working, A/UX, Mac OS, Amiga OS, SunOS, OS/2, VMS, QNX, BeOS and the entire OS zoo.