I just had my new CT335 delivered last Thursday and paid $21,350 out the door. I got the "free" front end loader, bob-tach, filled AG tires and both front and rear remotes.
Is the dealer your friend bought it from close? The dealer was a big decision for me because buying the tractor is really just the first step. You'll probably deal with them alot once you own it.
Does the tractor your considering have any warranty left?