They quote "there is no such thing as a bug free program", A game crashing or seizing after an hour or two of game play is acceptable, not as in new vegas every few minutes & at times every few seconds.
If Fallout 3 had been anywhere near half as buugy as new vegas then I would not have even contemplated wasting my money purchasing new vegas, & I will not be purchasing any other Fallout or games from Bethesda until I am sure that the game will run properly.
I hope others will take this stance, then maybe they will ensure that game releases are playable before release, as if no one will purchase their games they will have to improve their testing.