Well not to YOUR extent apparently, but:
Bought my 911 with '92 C2 5-spokes. Bought a set of 16x6 / 16x7 Fuchs. Bought a set of Cup 1's. Sold the Cup 1's. Buying a set of BBS RS's this month. That's car 1.
Car 2, I have 2 sets for, stock & Mille Miglia MM11-2's. Car 3 I have 2 sets for, stock & steelies for snows.
Old setups, I had stock, a set of Team Dynamics Pro Race 1's, Team Dynamics Rim2000's, a set of OZ F1's, and another set of stockers w/ snows.
Currently right now, I have (6) sets of wheels for the mrs. & I. I love wheels. I just can't afford my habit is all. Keeps me grounded though.