I have to say that I've been entirely pleased with my 1200 since I got it. PCMCIA networking's incredibly cheap and quite simple to set up, built-in support for a hard drive or CF adapter is very convenient, and having a 16MHz 68020 stock is a big improvement over a 7MHz 68000. Accelerators tend to be quite a bit cheaper and easier to get, too, and even a basic one makes a significant further improvement.
