but if you keep on waiting for that elusive hypothetical card, it appears to me you are only 'hurting yourself' if you want to run the latest games with an older GPU by refusing to upgrade.
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I think you have 2 types of low price buyers.
You have the majority of gamers who don't know much about vid cards. They want to stay under $100 and will tend to buy or be steered by a Best Buy employee towards a low quality card with a name very similar to the high quality cards, packed in a flashy box that proudly displays the extravegant amount of unused memory stuck on the card. Untruthful online reviews also steer people to these cards- case in point-
http://www.newegg.com/Product/...x?Item=N82E16814125065
http://www.newegg.com/Product/...-NX85T512HP+Video+Card
When in actuality, the card is basically equivalent to a lower end 6XXX series from years back.
http://www23.tomshardware.com/graphics_2007.html
The other type are those who either can't afford to or refuse to spend more then $150 on any single component in their system but do enough research to find something powerful and cheap. Bide your time and keep an eye on price watch and you'll eventually find a great deal.
This segment is growing as more gamers are painfully finding out that more RAM plus a high model number dosen't equal FPS. As more gamers become educated, hopefully we will see less emphasis in the low end on misleadingly packaged crap and and more work towards reasonably fast cards, maybe 40% slower then the high end but with a much-much lower power draw. Right now your looking at close to a 90% performance difference between a 85XX and a 88XX, basically a non-useable card at the low end to overkill for many at the high end. Granted, the 8600GT is a decent card for $90 and will last many gamers a good amount of time, but your still talking about the performance equivalent to a top end 6XXX series card.
People who don't want to shell out $300 for a vid card are not hurting themselves much. DX10 will not be much more then a few tricks for another year and nothing out this gen or next will be very good for fully ground up coded DX10 games. Someone that picks up a 7950GT for $130 (Tiger direct had one recently for this price with a rebate) would be basically be gaming in the same league as the 8800GTS (refer to chart above).
If you do some footwork, a sub $150 card can be found that can be used comfortably for two years. It gets even better for hardcore overclockers...