If all you are interested in is programming (UV/E)EPROMs, there are a
lot of solutions.
My interest extended toward programmable logic (PLA/GAL, PEEL, PALCE
etc.) in addition which is a little harder to deal with. Xeltek
works for me.
Some programmers have the ability to identify unnumbered or house-
numbered SSI TTL devices, which is also a plus.
--Chuck