This was, along with TOM, the first pinball I ever owned. It was beat up. I even posted the MPU board on the "worst hacks" thread. The rubber had been replaced and not removed: perished beyond belief. The playfield and inner cabinet was extremely dirty. The hidden parts of the playfield were literally black. All this said, the bones were pretty good. I learned a fair bit while restoring this game. It is so much fun to play.
First rule of economics, supply equals demand. Evidently, the demand for TAFs is exceeded by the demand and thus the expense of this machine.