If you really need a AGP card I guess it decent deal. Personally I think it a rip off $300 for a card that perform a good amount wrost then a 7800GT and the 7800GT cost the exact same if not less. I would wait till I had money for a PCI-E motherboard before upgrading.
Some ppl dont want to upgrade just yet nor do we have the money. It performs signifcantly more than my 6800GT at high res and thats all i need. Also, it just came out so the price will go down soon.