I'm only guessing here but people's ill (ish) feelings towards the card is probably because of what the card turned out to be... fastest card though it may be but placing its performance in the context of how much power it consumes and how much heat it gives off is probably what 'disappoints' people.
If you were to adjust/weight the performance (in a very crude way) of the gtx480 with a similar performing ati card by power consumption and heat output then you can see that it could have been quite a 'desperate' attempt from NV to churn out a card to win the 'fastest gfx crown' despite operating power/heat issues. Can't blame them for going down this (only) route though![]()
I'm definately not disputing the power/heat aspects of people's choices. Those are perfectly logical reasons for not getting the 480.