I am currently in the process to replacing the 9800GT through the EVGA RMA service.
Very happy with the service so far. New replacement card on its way (EVGA GeForce GTS 450)
I confirmed with the customer service rep. that the lifetime warranty will continue on the new cards based on the original purchase.
So basically I don't have to buy another graphic card again.
Make sure to register your product within 30 days and upload your receipt image.