Picked up my '93 B4 in June of '05. It's my first bike, and I think it's an excellent first bike to have. I've put about 16k miles on top of the just under 11k miles it came with. While I've had a few problems with it along the way, once things are sorted out it's pretty reliable, methinks.
Most of the problems stemmed from a rusted tank that did a mambo on the fuel system. Since the tank's been replaced and the carbs cleaned out, it's run like a champ.
It's about time for me to get something bigger, and I've been looking at the SV650 (the most direct replacement one can find for it), V-Strom 650, FZ-1 , 919, and Sprint ST as my next bike. Actually, if anyone would like to comment on any of these, I'd appreciate it. I think I should start another thread for that, however.