I have never tried BC skiing in the East but I am from there. One big factor is the amount of tree cover the east coast has. There are not many above treeline areas and the forest is much more dense then out west. It's not as if there are no backcountry opportunities out there, but you will really have to want it; I have heard of mega storms dumping on the blue ridge so in a good snow year there should be plenty of snow at altitude. Other years you may have to leg it up to the Whites, Adirondacks, or even out to the western ranges. Some winters even New England is crap. There have been some truly terrible warm winters with nothing but ice, sleet and rain.
I just had a thought...take it or leave it...but you could skin up the blue ridge or the skyline parkways