If you go camping, then you're likely going to need a tent of some type. If you don't maybe borrow a tent or go camping with someone who owns one, you will need to get one. Now at some hot camp reasons, there's actually the choice of renting a tent and other camping gear versus purchasing it.
The very first thing you ought to consider is the frequency which you camp. If you got after a month, then you're really likely to want your own equipment. You can browse online resources to get military tent rentals.
Tents are fairly cheap and it's difficult to justify leasing one if you use it frequently. If you camp once a year or less, consider renting your gear as you are not going to be able to look after it properly.
Another consideration is your means of travel. If you are going somewhere by car, you can bring along all of your gear. If you're out of condition via a plane, renting your tent will probably be easier.
If renting a tent in your area is very cheap or gets the cost of the campgrounds cheaper, you might consider doing this rather than purchasing. Many places prorate charges if you rent and camp.
If you have limited space in your home and cannot store your gear like a tent, then leasing does make some sense. In something like an apartment, you don't have a lot of space at all, even with tents being modest.