That's so not true! Games are getting better with time, I mean just look at the graphics in Assassin's Creed Brotherhood! I'm really looking forward to these new games: Dead Island, Dead Rising 2 Off The Record, Resident Evil Operation Raccoon City, (Yes, I'm a Zombie nerd) COD Modern Warfare 3 and Assassin's Creed Revelations... This year's gonna Amazing for games!!!
I see what you mean with bugs, but the company that makes the Fallout games is a very independent one, it's not from Ubisoft, Activision or EA Games, it's Bethesda Softworks, and who knows what other games they've made apart from Fallout? And anyway it hasn't got that many bugs that make it impossible to play, it's very playable and highly addictive :)
I do know of a game called Alice Madness Returns that does have loads of bugs like freezing, crashing and stuff, but again who made this game? An "Indie" Company called Spicy Horse, no doubt it's bugged, they haven't got enough money to pay testers...