All this fuss about PR worth almost nothing. It is true that many high-ranking Google sites actually have a PR of 2-3. I worry about getting traffic rather than the right to belong to the “web elite”.
For example, I used to have a site (not gambling-related) that had never had more than 50 inbound links, 1-page design (!!!) with affiliate content, and within 3 months it was awarded PR2. In 3 more months, still having a single page with 50 links, its PR was mysteriously boosted to 3! Traffic the site received was under 50 uniques/month. A year after that the site still has 1 page (the content has never been updated), same 50 links and the same PR3! And they say Google likes content and inbound links?! It definitely does, I can’t deny it, but blunders like the one I has just described show that PR and effectiveness of a site are not necessarily the same.