I first heard about this today and I thought this was a pretty good idea.

Has anyone had any good or bad experiences with this?

it is a great plan use it or lose it

I stepped up from an eVGA 7950 GTO to a 8800 GTS about 6 mos months ago. I had no problems and it took about 3 business days to get my new card. The only thing I didnt like was that I had to pay full retail price for the GTS ($500), when they had just dropped like $50 on the online stores.

Its also too bad that you can only ship your card to them, as their office is only 30 mins from my house in So. Cal but they wouldnt accept a card that was dropped off. Had to fork over $15.00 to ship it like 30 miles.

Do you pay the difference of the cards?

Don't you think it would be stupid for seller to let step up from like 7600gs to 8800gts without paying a diference? 8O

Of course you pay the difference but I was just trying to find out what the specifics were, not much was said about pricing on there website.

Thanks.

Of course you pay the difference but I was just trying to find out what the specifics were, not much was said about pricing on there website.

Thanks.
EVGA give you trade in credit equal to what you paid for your card. You have to send them the receipt/invoice.
You then pay the difference between that amount and the MSRP (not the going price on etailers like Newegg) of the new card. For example, let's say you have an 8800GTS-320 that you paid $299.99 for and you want to step up to an 8800GTX. From their product page, the basic 8800GTX has an MSRP of $619.99 (compared to the Newegg price of $559.99). So you'd pay $320 (619.99 - 299.99) for the step-up.

the stepup is valid only within 3months from your first card purchase, and it's a once step-up only.

You cant have 7600GS and 8800GTS with the same price within 3months ; ;