So one of my 9800GTs died, again, and this time I've been offered a replacement. Unfortunately, they offered me a GT 240 which looks to be more equivalent to an 8800GS in performance. Any tips on how to persuade them to upgrade me to a GTS 250? 
So far I've sent them an email back asking for an 8800/9800GT or "newer architecture card of equivalent power" - and they won't have any 8800/9800s else they would've offered me one instead of the GT 240.

So far I've sent them an email back asking for an 8800/9800GT or "newer architecture card of equivalent power" - and they won't have any 8800/9800s else they would've offered me one instead of the GT 240.