Travelling around and talking with people it seems that most people with large RVs use them for long trips and sometimes for the whole winter or full time. For people that usually camp for 3-4 days, and then go home, it is hard to understand the appeal. For people that live on the road, having a walk around bed, storage, a real kitchen, a comfortable chair, and yes TV make sense.
The beauty of the outdoors is that there are so many right ways to enjoy it. Next time an RV gets in your way, try to meet the people.
Forest Service campgrounds in the summer are some of the noisiest place to camp. Working people with a day or two off like to stay up late and drink and get loud. RV people who live on the road are inside by 9 pm and they are really quiet. Generators at the wrong hour are an exception.