Welcome to the world of Bow Hunting. Now before you do much of anything, the first thing you need to do is build that addition your going to need to store all the stuff your fixin to buy.
I guess the question is how much harder it is hunting from the ground than elevated.
My "opinion" is it is harder. How much is relevant. Considerations are your increased visual abilities, easier ability for movements with a close deer, arrow exit "should" always be low which will improve bleed out making tracking easier, deer do not normally look up, but trust me if they think they have something to look for they will look straight up. The downside to tree stand hunting of course is the lack of mobility. But if you've done your homework right you should be set up in the right spot considering the deer's movements with the direction of the wind. The same logic applies when setting up on the ground by the way.
I've been bow hunting them things since 1975, filled my tags every year. Killed some pretty nice ones to over the years. I mostly tree stand hunt, not tree house hunt. We'll use climbers or strap ons. I've killed them in upstate NY, Pennslyvania, Georgia, Virginia, and Texas. I've killed some from the ground using the pop up ground blinds, I've killed them waiting in ambush behind a hay bail, I even killed one on the ground when I was right under my tree stand. I hadn't started up my tree and heard the grunt. I got turned around just in time to knock an arrow and the doe brought him right in front of me ten yards out. (Say good night dick!)
I prefer being elevated, but where I hunt it's good terrain for tree stand hunting. If your hunting Texas, ground hunting is the norm, or tripod hunting near a feeder.
If you're just starting, I suggest you hook up with someone that' s been bow hunting. You have alot to learn. Too much to put in a posting on this forum.
You've seen a couple of comments regarding wind direction. Wind direction will make you or break you. You'll figure that out after your first Snort!