Most people in the US who are serious about printing or print a lot for enjoyment will eventually end up with a Saunders. That just seems to be the way it is. They are great enlargers. They are also easy to find parts for, not that there are many parts. Durst makes a great enlarger too, but unless you find one with every little piece you want it can be a pain to find the parts you are missing. At least that is what it seems like. I always thought the 1200 was a great enlarger. It is probably a little better than the Saunders 4550, but hard to find in the US.
If you want two enlargers, get one for the second that is a dedicated 35mm enlarger like the Leitz Focomat V35. I would love to own one someday to stick next to my Saunders. What a dream that would be!
There is a lot of dumb luck in finding these things if you can't or don't want to buy a new one. I stumbled over my Saunders a few years ago in a poor ad on Craigslist. Since it was a couple hours drive away, I waited. A couple of weeks later it was still listed so I called. I was the only call they got after a month they said. Unbelievable. I also got a bunch of other things with it (huge Rototrim, Polaroids, meters, Easels) so I got super lucky. And it only cost me $200. Again, it is just dumb luck.
If you are thinking you want to change, then go for it. Life is short.