My business partner has a few sites that he bought with existing pr and traffic. he ended up dwindleing the site down and now it basically is just adsense on the site. so the pr has not moved up but it's been like 9 months and it hasn't moved down either and he gets almost 100% clickthru with the site. it's all the people have to do is click on the ads that pertain to the search words that got them to his site in the first place. IMO this is pure garbage. yeah you are going to make 1 or 2 bucks a day on a site like this but you'll have to own 300 of these crap sites to make good money. Rather just get a few maybe 3 or 4 or 5 really good sites that you can put time into and keep fresh with good content. then you should be able to turn 20 or 30 bucks a day on clicks from each site or more. it is said here very often but it is true. CONTENT CONTENT CONTENT
whst the point if traffic comes and leaves your site immediately? they will simply close the window to get rid of the site.