I've got an lot of tents and several tipis and lightweight shelters including an 12 man Kifaru tipi. I like the larger tipi but if I'm not that far from the vehicle it's an expensive option.

Bad thing about wall tents is that they're pretty spendy as well and quite heavy. I've been eyeing this http://www.snowtrekkertents.com/basecamp.html

I could sled it in, drive in, or put it on my nephew and it looks really comfy with extra headroom. I want one.