Piecewise said:
Honestly, I've got the 360 version and haven't had a lick of trouble with it. It froze once (after I played for something like 7 hours) and the sky turned green, but these were both easily fixed (restart and quick travel respectively) and caused me no problems. Me thinks this bug problem is blown out of proportion by people who don't actually have the game.
This is completetly off-topic, and I quoted you just to get your attention; but being a complete Kusanagi fanboi, I can't but note your awesome avatar! Awesome, dude!
OnT:
The problem with QA is that it's expensive and only drives quality up, not quantity. You don't release more games by doing QA, in fact you release less. It's also difficult to find statistics that can prove to management that quality pays off. If you have a professional QA team, some of your products are going to be rejected, not because they have to many glitches but because the software as a whole just doesn't work. I can only speak from the perspective of someone who develops distributed real-time software, but the principles of software development are the same. A good QA team in a game company should also be asking questions about target audiences and such.
It's hard enough getting QA taken seriously in the general software industry, so I can imagine getting serious QA in the extremely hectic and sometimes haphazard world of entertainment is nigh on impossible. Something as complex as a full open game world with non-linear progression is likely never going to be tested sufficiently -- you'll need to model the entire software in order for QA to have something manageable to work with. It's definitely doable, but apparently it isn't worth it from a business perspective.
That's no excuse for the programmers who have ignored their pride as craftsmen and released broken games; I can't say anything about Fallout Las Vegas (having been so thoroughly disgusted with F3) but there are just sooo many other examples out there .....
Apparently, it's a sound business decision because this downward trend has gone on for a long time, while the market has continued to expand (ie, earnings are going up).