In 1990 I decided to go into business for myself and a lot of that was (is) custom printing. My old grey Beseler 45 MXT was my only enlarger and I was worried the motor would die as it had so much use on it already. So I bought a new black Beseler and kept it as a spare for when the motor would die. Well 19 years later and thousands of hours later and the new black one is still waiting to be needed. The old grey one still work perfectly. The old one has some left to right swing adjustment and forward to back as well so it can be perfectly aligned. I think the newer one is much less adjustable.
These enlargers are so cheap used now that it wouldn't make sense to buy a new one or fix an old one.
Dennis