Do you have a particular age/version of the C22 in mind? Obviously, newer boats will be more expensive than older ones. Those with hull numbers < 1000 will be much more lightly rigged than later boats, and will probably have been raced (they win in light air because they are so much lighter than newer boats), so they might be a bit more 'used' than later boats.
My C22 is hull #11735, from 1983. It has a pop-top (early models did not) and this makes it nice when you are anchored. The rig is pretty stout, and the boat is more heavily built than early models. Granted, it's not for offshore use
, but I've never felt in danger with winds over 25mph and gusts over 35. However, in those conditions, the sailing wasn't exactly fun.
The wing keel version is not as weatherly as the swing keel, but I don't know if its motion more or less comfortable. Mine is a swing keel, and it serves me well. It was in good condition when I bought the boat in 1998, and its in better condition now since I have replaced the keel cable, pivot pin, etc. (incidently, these are not hard to do.)
Anyway, the C22 is a great boat to start out on. Responsive, but forgiving so you can generally learn the right and wrong way to sail it, get immediately feedback from the helm, and not end up in too much trouble when you make a mistake.
C22 - Stargazer