I have hunted a long time and have done it almost any way you can think of. I really like ground hunting and with a ghillie suit. I can learn the critters habits, refine my presentation and have shots of less than ten yards, sometimes as close as five. It is way different than being in a tree. ha... I also don't mind being able to nap when I feel like it.
You can get by with less gear. Sneak in at the last moment without the need to let the area settle down. You can do many many things, including standing in water to catch them as they cross a narrow passage, sit in the marsh here, as Pavan pointed out, there are no trees, and everybody and even most deer, now look up in the trees for hunters.
If the wind moves,I can too, very quickly and quietly. I also have less invested in terms of time setting up, so if the hunt goes sour because wind shifts, I don't mind bailing to hunt another day.
I don't tend to fall very far if I fall asleep. I see so many neat things. I don't have to carry near as much gear. Is that enough ?
Don't for a minute think it cannot be done.