I'll agree, then throw in the "what do you need it for" part. If you're a generic home user, that might play the Sims and surf the web, a high-dollar vid card is a waste of your cash. TBH, unless you're a hardcore gamer, SLI is a waste of money, you will NEVER touch two cards worth of bandwidth.
I look at it this way...........if you live in the US, and need a car, you can certainly buy a Ferrari F40. But if all you do is drive to work and the grocery store, do you NEED it? Nah.........a VW Beetle will do you just fine, and more than exceed your needs. Anything more is simply a waste of cash.