Your own collections that you bought at retail prices from a comic shop, or that you got at wholesale?
The baseball collections came from collecting them since I was 12. The pokemon cards came from my mate and the yu-gi-oh cards came from my mate's brother. I tried to price them as accurate as I could with what little market info I had(thanks Ebay).
So your investment was fucking zero!!!!!!!!!!!!!!!
Goddamn, you are a douche.