I usually carry mine in and out, but I do rarely make an exception.
1. It costs less, as I only need one stand for each person.
2. It allows me to adjust to the wind or some other factor that I may acquire while I am on my way out or at home/base camp.
3. We shouldn't hunt the same tree too often.
4. They are not hard to pack in or out.
5. It doesn't "claim" public land. I don't agree with claiming a domain on public land, but believe first in earns right to hunt (unless prior agreements have been made with other hunters in the area).
Once I had scouted a very large area of public land pre-season and learned of an area I considered to be a prime location. During the season, I went in with my climber to hunt only to find a stand chained to the tree (no biggie really) but what upset me was the ground cover in the area was clear cut with a machete (turning shooting lanes into an open parking lot) and corn was dropped all around the area. He ruined what was a legal prime spot. I reported it to the game warden (it is illegal to hunt over corn here), but I don't know if they did anything or not as the area wasn't easily accessible. If that happens again, while I wouldn't ever damage or vandalize anyone's property I would be tempted get some tissue paper and rub a chewed up chocolate bar on it and then tuck that along with a note requesting he not hunt over corn next time (if I had something to write with) in his seat cushion on his stand to send a message and play with his mind so he might think I ruined the area. We have a lot of poachers in MS, and it can be a bit taxing to hunt legally and then have the hunting area ruined.
Now of course, that story has little to do with the post at first glance, but my point is...What we do on private land is our business, but when we are on public land, I believe we need to follow the laws of the area and make our impact minimal. On private land though, IMO, a person should feel comfortable doing whatever they want, (assuming they they are the land owner).
The only exception to carrying a stand out I can think of at this time and that I can justify for MYSELF would be during the rut when deer of less alerted and I hunt one evening and again the next morning at the same location.