8 vid cards? Pffff. I'm sure the video card makers would love to sell 8, even 2 video cards to most users. Most users just get one good though. It's sure cheaper, and can you imagine the heat and noise from 8 vid cards?
the Alienware computers use Nvidia's Quad SLI Technology and have 4 vid cards in their computers, and they use liquid cooling....which results in a silent computer. The liquid cooling can also drop the temp of a computer by about 20 degrees compared to fans.
**Note: any prices I post are in Canadian Funds unless otherwise specified**