I wonder also if when it says "Dealer Stock Only" that it is late enough in the model year that you can't custom order one until the next model year comes out.
And waiting for the next model year does not always bring improvements, either.
Our previous 2013 Heartland Trail Runner we purchased off of the dealer's lot early in the model year, and when the 2014 model release came out, it had a nicer paint job on the outside, but they swapped a bunch of stuff around on the inside, and in my opinion ruined that model.
We would not have purchased the 2014 model had that been the one we saw on the lot.