I'm calling ******** on anyone paying $10K over sticker for a Raptor right now.. that would be foolish! Hell, you could probably find an in-stock Roush at MSRP which would almost be the same price. Just look on ebay!
All I have to say is, you have to shop around! I must have inquired with about 13 dealers online, emailed 10, spoke on the phone to at least 7 different dealers, and probably stopped by 6-7 of them. None of them had a "market adjustment" on them, but some indicated they wanted to ask $2K over MSRP since it was getting towards the end of the production run.
I talked with a few dealers that said they would NEVER ask over MSRP and that they felt that it was not fair.. and I believe them. These would be the dealers I would buy from and continue to buy from in the future. The gouging dealers will never get a dime of my money, period.
In the end I did get below MSRP and was very happy with what I got... the patience and persistence paid off!!
Good luck with your search/order! And btw, I'm still not missing my Z06... one bit!