That's what I was hoping - I know the link from the site is only temp as long as you are paying for the ad and the link is up and running- but at least it would boost my rank in the SERPs and hopefully gain me some traffic in the long run.
PR doesn't matter. PR doesn't pay the rent. Traffic and conversion matter.
I have sites with ZERO PR that make money. I have sites with high PR that make much less.