I've got an Omega D-3v that my parents the pros bought in the early 1950s. This enlarger received hard use daily for 50 years, and still worked just fine the last time I had it set up (2010). I have a bunch of associated negative carriers (Minox to 4x5), four lenses, the lamphouse diffusers, masking thingy, reduction bellows... plus filters, timers, etc. Alas, I don't shoot enough film to warrant setting it up these days, so I scan my negs.
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We also had a Durst M600 that I gave to a friend's daughter when she was in art school. Earlier, when we had a larger studio (vs. downsizing into the basement) we had huge 5x7 and 8x10 Elwood enlargers, plus a smaller Federal enlarger, and a medium format "Astrolux" by Luminos. (Luminos was situated nearby and was a regular customer - we printed all their photo paper samples they gave out at trade shows - and this enlarger was rebadged from one of the smaller enlarger manufacturers.)