Forget TAP, there's much more on Barnstormers.
Only if you let it. If you want it bad enough you'll find a way. You can get decent experimental S-1C's (flatwing) in the $20K-$25K range. And decent experimental S-1S's in the $25K-$35K range. Hell, you could probably sell that bike of yours and be halfway there.
There are also a few rare factory S-1S's and S-1T's out there, with the T's topping out in the $55K-$60K range. I've got a factory S-1S, and there just isn't a more fun airplane anywhere, not that a single-seat Pitts doesn't have drawbacks. Keep in mind that an S-2 will give you no more performance, but that extra seat will cost twice as much, and will be empty most of the time. The S-1's really are the best bang for the buck aerobatic airplane available. My S-1S is competitive in all but the top level of aerobatic competition. Just moved to Advanced this season, but I'm still a ways off from flying the airplane to its full potential. It'll take you far. PM me if you have any Pitts flying/ownership questions.
Eric