Doesn't seem to be a bad promotion at all, from evga:
http://www.evga.com/articles/362.asp

For a limited time only, receive A Free EVGA 680i LT SLI Motherboard (122-CK-NF67-T1) when you buy the EVGA e-GeForce 8800Ultra 768MB (768-P2-N881-AR) graphics cards from select Etail Partners while supplies last.

The “Out of This World” in performance EVGA e-GeForce 8800 Ultra takes gaming to new extremes through faster core and memory clocks, delivering the ultimate in gaming performance and combined with the Award Winning EVGA 680i SLI Motherboard, the best “Bang for The Buck” has been Redefined.

Don't get me wrong, I love eVGA. This can be corroborated by my posts that lag on about how wonderful they are. But the eVGA e-GeForce 8800 Ultra costs almost $800 on newegg! Thats too much for me.

More like "3x included in gfx card price" rather than "free".

They try and make people think they are getting a good deal, when they increase the price of something, then throw in something free . It's a good marketing scheme too; it works .