Apart from my Titleist 3 wood, and my 52 degree Mizuno wedge, all the clubs in my bag at the moment bought from new. I like to buy from new, look after my gear, and stick with it as long as possible.
a) 18
b) £1600
c) £300 (Thanks to TM / GM fitting for my R11s and RBZ and a set of irons as my 25 year long service award I have only bought the rest and the putter was an Ebay special)