[Edited by ServiusTheBear, 10/31/2013 4:39:10 AM]
The only reason to have bought it early was that if you played online in October, your character would get $500,000.
But since it's November, there's no point to buying it now if you think it'll be cheaper after Thanksgiving.
Of course, I doubt if the stimulus will ever come through.
I say wait, just because the single player sucks after the poorly written story is over. But that's a half-assed opinion since I've only played about an hour of online.