I agree...
get your own PR7 or PR8...thats my vote.
You can do that with
SEGuru.Net .
When I was in London, we met another one of our members...and he told me of a PR8 they got out of SEGuru.Net and that his company placed a value of about $50K on that domain.
Yeah baby! It also enabled to to get some SERIOUS rankings for their primary gaming terms.
We just added a new 3 day trial so you can check us out.
My vote, get your own PR domains (if thats what's important to you) instead of continually giving away "ad" dollars.
Invest in yourself, thats my motto!