From all the researching I have done, people change their set-ups or camping vehicles many times during their lifetime. They move up a size, down a size, want to move around and boondock, want to stop driving and settle in for a few months at a time. You may want to travel to states that it is hard to boondock, or you get a real shower for little more than it costs to empty your tanks. So, for that reason, I would keep the microwave, tv, and ac. If you are in a paid campsite, and it is hot outside, I would want to use the a/c. When I car-camped, I got really hot in Florida. It is hot in the day time and then some nights, it doesn't cool off. I would want to drive a ways, and pay for camping. I did drive about 75 miles away from the ocean to get to a campground where I could set up a tent and get cool at night. I would not buy a used trailer without a/c.