I have a fairly good idea what I'm spending (and what I have on order), but i prefer not to think about it too much (ignorance is bliss).
I also think the 'forum effect' is fairly balanced. That is, I recently purchased the SS Jason Scream statue after having seen it here (and love it), but cancelled the 1:1 Queen Facehugger having also seen it here (just doesn't look organic enough for me).
I'm married (no kids) and my wife is very understanding of my hobby . . . but I do need to reign it in. Have about $5K's worth on order between now and 1st qtr 2010, but I also have no space left at all . . . some stuff will just have to go . . . but what