Fox why did you buy a BMW when you could get where you wanted in a sub-£1k car?
Completely different. Were my point 'Why did you spend that on a PC when you could have got a Duron 1Ghz' it would have been a fair question, but it isn't, so it isn't.
There is a huge perceivable difference between a £1k car and a BMW. The same cannot be said of a Q6600 and a 8800GTX versus an E6700 and an 8800GTS.
Remind me again which games really take advantage of a Quad Core CPU?