I have one fully enclosed elevated stand with sliding windows, door, rubber roof, carpeted floor and a swivel chair. I rarely use it because it is too warm with the heater on when wearing my hunting clothes. The real reason I do not use it much is because when I sit on a stand I generally hear the deer before I see them and that is not possible inside the enclosed stand. In heavy rain or a blizzard, the shelter is nice, but never had much success hunting in those conditions either.
For hunting I will take an open stand with some type of screening to partially conceal my movements over the enclosed box style stands.
On the other hand, if the goal is to play cards with your buddies while "hunting" maybe they work if big enough.
