I've just spent an awful lot of money on something very, very silly that I won't even get to see for 4 months:

http://www.sideshowtoy.com/collectibles/dc-comics-batman-1960s-tv-series-hot-toys-902080/

I'm refusing to tell my GF exactly how much money and hoping that she doesn't know how Google works to find out. Somebody please share your most absurd purchases so I can feel less like a bastard when she asks why we can't go on holiday this year.