I have never bought a dirt bike from a dealer......in fact the only brand new bike I've ever owned was the one I received for Christmas, back in 1974, Kaw KD80.
Bought my GasGas from a forum member in 2000, via email and telephone.
I don't feel the needed get all touchy freely with a bike on the show room floor.....if you know what you want.....you'll buy it.....IMHO.