aw man, totally in the same boat as that dude @ New Vegas. i know i want it, and $30's not bad, but im not gonna play it yet. looking at my current PC backlog:
Planescape
Vampire: Bloodlines (im gonna give up at the sale's end and just buy it, i think :lol )
Deus Ex: GOTY
Amnesia/Penumbra
Bone/Indy: Fate of Atlantis/Sam & Max season 3/various SCUMM titles
Machanarium
Baldur's Gate 2
and a lot of others to try out like Thief, The Void, Witcher, etc.
of course, the only fear i have of waiting till the july 4th sale to buy it - WHAT IF I WANT TO PLAY THAT GAME?:lol on the other hand, while i dont really get too concerned with DLC, i hear i missed some good ones on fallout 3, so waiting on GOTY might not be a bad idea either.