LOL -- I know the value of PR, but this thread raises the very important issue of considering PR against both query volume and the number of other sites out there on the same subject.
Consider the following query:
http://www.google.com.au/search?hl=e...S earch&meta=
It returns 12,200 pages, and the #1 result is a PR6 --
www.mastergardeners.org. But the top listing on page 2 --
www.grimonut.com has already dropped to a PR4.
Now consider this query:
http://www.google.com.au/search?q=cs...st art=0&sa=N
It returns 2,530,000 pages, and the #1 result is a PR8 --
www.w3schools.com. But to page 10, and the top listing is also a PR8 --
www.slashcode.com
What does all this mean? It means a few things actually...it means that the more pages about a topic there are in the index, the higher the PR necessary to place high in the SERPS. It also means that Google returns pages, not sites, and that greater relevancy to a query can make a lower PR site displace a higher PR site. I think the number one mistake people make when they go for particular SERPS is they show little imagination in conceiving the queries that the searcher is actually going to type. Hope this helps --
2hp