Like many others, I've always been into knives and the first real purchase on my own was a Buck 112 at a gun show. Through a few slipjoints and lockbacks not worth bragging about, I finally bought some Elishewitz CRKT and then the Kershaw Blur. Somewhere in those purchases, it hooked me and I'm a financially drained yet happier man to this day. Once I decide to collect or amass any particular item, I'll buy the things that I like until I'm content with the "collection" I have. I'm still keen on my collections of vinyl records and antique cameras, but knives have definitely taken the lion's share of funds in the last couple years. Obsessive-compulsive maybe? The hunt for rarities is also fun to me.