When my addiction was in full force -- probably 3 to 4 times a year. Mind you these were fairly large sets, nice chips and I always wanted to buy more. Fortunately I've gotten beyond those days (they are expensive).
Seems like every time I think I'm satisfied with my sets a new set catches my eye. I have had, traded, sold and traded up an uncountable number of sets lol. Jim at Thechiproom is like a crack dealer. He keeps me coming back for more!
When my addiction was in full force -- probably 3 to 4 times a year.