I would like to know as well. Great idea for the first person that created it - he'll make his money. Some others might have a little success. But really, how many will there be? This reminds me of hotornot.com. I guess the best return on investment can only come sooner than later - after it sells out, there will be no buzz left so regardless of it being up for 5 years or forever, there will be minimal traffic after 6 months. He just added a link page without tracking - I assume advertisers think this is for seo purposes. There will be over 2,000 links on there probably even if the PR hits an 8, how much will it be worth anyway... Still, kudos to Alex. I wish I'd thought of it!
All i can at this point is that in the start Pixel advertising helps say for 6 months or so and after that it will be dry. 1. Cut your period for 1 year to 6 months. As after 6 months when new pixel banner will be up traffic to the advertiser wont hurt. 2. After 6 months ask your advertisers to provide new pixels so that visitors still find them interesting. 3. The price is excellent any one can afford that amount. should i jump into this busiess aswell These are only the suggestion what i think.
In terms of pr it will just turn into a link farm. People will probably get nothing and those linking back to him might get penalised. Thats why my banner is in flash format.