I'm so naive, I didnt even realize what 3M is trying to do until i saw this thread. We may need to dig out the ouji boards and consult the oracle. (sorry Colorado - couldnt resist!)
If that's what 3M is willing to spend marketing money on, maybe in the long run it will help increase the overall amount of business available, as dealerships realize the potential for customer service and increased profits and salesman start pushing.
So switch to using Oracal, let 3M have at it, and hopefully ride whatever wave may pass by. That's all you can do. Just remember - at the dealerships, it's all about customer service these days, so if you can get there and get it done faster then the 3M guy, you will get the business - even if you are higher $.
And, decoded, this is kinda what Craig was saying.