After my bike fleet dropped by a couple frames and 5 bikes last season (to finance a bent trike) I thought N would stabilize. Then I picked up an awesome Lemond frame and lots of bike parts at the Westminister show. N+1
Pondering the parts I realized I had everything but a frame and crankset. Somehow I found a decent external berring BB and double compact crankset for sub $50. Then a new double butted Leader steel frame appeared for $114 shipped on Ebay that would match my full carbon Litespeed fork. The frame arrived today - very nice. Frame and fork are 6 1/4 lbs.
Sure, even killer deals still add up to real money but I can usually recoup most of the cost. The fun of building and riding unique frames is a blast. Money from flipping bikes (usually C&V) covers any shortfall.