Why do I always do this?

Why do I always win auctions on the swedish equivalent of e-bay, when I dont really want the thing I am bidding on? And why am I so honest and pay the 25 crowns for the thing, the ten crowns for the bubble wrap and the 37 crowns for postage?
Last buy: Two flat tin boxes, one that says "goggles" and once kept a pair of sunglasses. The other one used to keep crayons I think. I dont have any crayons. I have a lot of tin boxes. I used to collect them. I dont anymore.

Mission of Tomorrow: celebrate friend vanjas birthday. Not buying things off the internet (unless they look like a sofa...or that really cool tin easter egg I found a couple of weeks ago...)