my friend bought his saphire 4870x2 last year for $500,sold last week for $275 ,put up another$225 and grabbed a single pcb 295 for $500...why?because its smoother,drivers are dam near flawless next to the 4870x2. he was having diff weird issues in games.he said he could not imagine going xfire over quad sli.some ppl want hassle free gaming and wil pay for it.plus the 295 is smoldering fast as a single slot watercooled solution.