Thanks for the input Steve.
I agree that the Localization/personalization are the biggest hurdle for SEO. Given the state of change and where we maybe in a few years I can agree that search as we know it will change dramaticaly although I hope that the competition makes for better results all around. It makes one wonder if advertising in Florida while your in Arizona using present tactics will hold up.
I also have several sites all DNN and do well with them for now. My concern is perhaps the same as yours and that's the DNN architecture. I know DNN has been supportive of SEO abilities and hope it continues.
Kemper