I have a major obsession for 3 things - sport jerseys (NBA), caps and shoes. I'm living the high life on vacation filling not one but two suitcases with my new additions and I still have another week and a half and considerable amount of money to get through. On another note, I have a good friend who collects Scotch, wine and cigars. He's spent tens of thousands of dollars on these and has an impressive selection at home. He usually cracks it when we go over for a poker night or dinner but never without moderation. I also have another who still collects Batman comics - ordering through stores, eBay and forums pretty much anywhere he can get what he needs. Expensive and respectable. What do you collect? What's your obsession and how much money have you spent?