I'll tell you the truth, Craig that I myself do not currently see any value at all in paid inclusion. The only way I would participate in Overture Site Match was if a client absolutely had a bunch of pages they wanted indexed but the search engine crawlers could in no way get to them. I usually do not find that to be the case however and have been able to get many dynamic pages, e-commerce pages, etc. indexed and ranked well without PFI. Build a site map or maps, make sure there are not too many parameters being passed in the URLs, etc. and you are in.
Besides, I still don't trust the Overture PFI program yet.
For me, I'm just letting everything expire - Inktomi and now Teoma, and will wait and see what happens with Yahoo/Overture.
Heck, I even cancelling Yahoo directory renewals due to the fact that they will use the directory info in the SERPs for the home page listing as opposed to my title tag and snippets of html content. For me, everything inclusion wise is free again. Yeah.