Or more. Serious gamers replace their GPU roughly every year.

Yeah, but what else are their customers going to buy? AMD?

The customers aren't actually going to exercise the refund; the point of offering it is just to prevent backlash.

http://www.joelonsoftware.com/articles/customerservice.html (scroll down to #7)

I don't see the relevance here, but that article was actually really interesting. Thanks for the link.

Sure. Some people might just get mad enough to do so.