Blackheart,
Yeah, it's hard for eastern hunters to grasp hunting in the West--just as it's hard for western hunters to grasp hunting in the East.
Have hunted in New York in the Adirondacks, Catskills and one isolated state-owned "mountain" in between. As you said, hunting varies in New York--as it does in Montana from one end of the state to other, a distance of around 700 miles, with the whitetail habitat varying from prairie with hardwood draws to big-riverbottom cottonwoods to steep, thick conifer country in the northwestern part of the state.
But it's all whitetail hunting, and as I noted, my experience is that whitetails are whitetails no matter where you hunt them. The terrain and hunting pressure make a difference, but they're still whitetails, no matter where they live.