For that matter, quit buying them the first month or two. Let someone else debug them and when the game is worth actually playing, get it. Heck by then 1/2 the time the game has dropped in price 10-25% anyway.
I have given up on buying games before the first major patch, for that matter the first few if I am really interested and the reviews are that bad.
Or quit buying AAA titles at all. There are enough good indie games around that I haven't even got around to looking at the big names for the last two years. Even the pre-alpha/alpha/beta versions seem to have fewer bugs (and they get fixed faster) than a major release of a AAA title.
Makes you wonder just what the budget split is in the big studios between bling/marketing/executive leeches and actual development.