There's really no way to prove it, but I'd venture to say 99% of people who buy the reference blowers stay on the reference blowers and don't watercool or add an aftermarket gpu cooler, what do you really think the percentage is?
Probably close to 99% that buy them will use the reference cooler or a non reference cooler installed from the factory. How many people do you think actually watercool or buy GPU coolers? It's a very small amount
Uh...no, it's not all that matters. It might be all that matters to people who CARE about price/performance. Some people have a lot of money, and only care about performance, whether that be gpus or sportscars, same thing applies
well I always buy reference with stock pcbs, and i don't water cool. I guess I could always replace the 7970s in my other system with a few 290x's, though that might anger the wife ....if she finds out