I've heard rumors that new adwords campaigns in competitive fields suffer their own 'sandbox' affect where they don't just drop in where you'd expect them to..... maybe the solution is to blast the bid price as ferraristi suggests until they can't resist your bid price?
I've tried that, it really has nothing to do with the price IMO. I emailed them about it a few days ago for another campaign (before I caught on) and as soon as I got a reply via email the campaign was working again as normal even with "regular" bid prices. But, the problem is, if they are going to be manually approving things behind the scenes, after it is automatically approved by the system, then they should at least let us know so we are not sending multiple emails and getting all worried about it. :/