I'm not sure if anyone looked into this site, but here's what I saw in my 2 minute tour.
No designs are $99 (just the name of the site).
They have various levels of design, for example, on a logo, you have 4 options:
Logos :
Basic - $295
Standard - $495
Premium - $695
Customer - You set the price and see if anyone is interested.
It says the Standard is the most popular, so that's $500.
The problem comes when you click past the first page. You get a page with options on it. To increase the visibility of your contest, you have to pay for various options, like bold titles or Featured Listing, etc.
So that's another $85.
So we're at $380 for the basic, $580 on the Standard, and $780 on the Premium. The difference in the packages is how many design options you get.
I still cannot tell from their legal mumbo jumbo who owns the rights. They appear to wash their hands of it saying that's between you and the designer, but I admit, I didn't quite understand some of the terms.
So $780 for the premium logo package. That's a long way from $99 bucks which was mentioned a few times in this thread.