OK, I just noticed Adgitize has raised prices to 24 dollars a month.
I'm OK with this. Their service is growing, so I expect prices to go up as demand goes up--simple economics. The increased prices will also result in more earnings for Adgitize members (since profits are shared among the bloggers based on points earned).
And let's be real--under a dollar a day is dirt-cheap advertising for the number of impressions you get.