I didn't think the list had anything to do with price... Furthermore after looking at the official list on overclockers.net I think we need to change ours since since it is slightly different. I think that theirs is more reliable since they have benchmarks proof for all of their changes.
The single benchmark/game where the GTX280 is the clear winner is bioshock, anywhere else the GX2 is either much better, meets or is only 1-4 FPS less than the 280, and for it's current price, thats hardly justification for the top spot.