Yes, make a site that hasn't been done a dozen times before (in some offshoot version). Someone who made a SatoshiDice clone can change it all the want, it's still a clone that adds no major value to the previous one. There are some pretty high standards to follow here if you're honestly asking for criticisms.
Instead of a pixel site selling space, which in my opinion is pointless on a site that isn't already popular (e.g. MtGox selling space would be a HUGE hit now wouldn't it?), why not try an original project? I have to go pick up dinner for my girlfriend and dogs. If you'll be around in a bit, I'd be happy to go over ideas with you. Creating is fun-- creating successful things is better though.
Meh I believe there is some potential to this if (and a pretty big if) you can give it enough of a push marketing wise. Both S. Dice and MtGox are ideas that suck and have been executed by inexperienced teenagers that are made to look like total fools with the constant DDoS attacks.
I will evolve this idea and take it to a different location, perhaps modernize it a bit for 2013.