The only real benefit at that level is that you don't pay for food or rent in the barracks, so if you are disciplined and not addicted to sports betting, you can save all that money, which is why people blow it on a Camaro when they are 22, but then basically have nothing outside of that.
It's also why people in the military get married so young and divorced so often, as if you are married you get to have a little house on base with all your rent and food paid for, but once you make rank and can just live in a house, suddenly living with your wife who you always hated doesn't sound all that appealing any more.