This was extremely top of the line when it came out, it has an insanely powerful GPU, just because it is a few years old doesn't mean it is less powerful than some of the newer cards. What's more powerful? A 1994 Ford Mustang or a 2008 Honda Civic? I know the computer industry is a tad different as advancements come faster, but you get my point.

This wasn't a 200 or 300 dollar card 3 years ago, this was a $500 to $600 dollar card MSRP 3 or 4 years ago. The GPU is STILL huge, and can run almost any of todays new games at the highest visual settings. And people don't price things low if they are willing to take offers, as the offer is always going to be lower than what you are asking for it.

Performance

The gaming performance on the GeForce 7800 GTX is nothing short of amazing and it takes the crown as the fastest single GPU configuration. In many cases, we saw a single 7800 GTX rivaling the performance of two 6800 Ultra cards running in an SLI configuration. While we might have been hearing the claims that the G70 was going to be twice as fast as the NV40, that obviously wasn't the case. The 7800 GTX didn't completely blow away the competition like many would have liked to see, but it did come away as the new performance leader, and by a sizeable margin in most cases.
http://www.pcper.com/article.php?aid...=expert&pid=17

This is a full in depth benchmarking review of this card. Granted, a 500 dollar card 4 years ago is equaled by a 200 dollar card today, but still, your suggestion that $20 dollars is generous is absurd.