hey. I went the opposite way in a month and a half. I agree with you about the pop-up though as far as the style of camping. I love my new travel trailer and it's SOOO comfortable to sleep in , it's really like being in a hotel room. where the pop-up had the advantage of when we slept in it, you could hear all the bugs and noise and fall asleep to that. I think they both have their advantages and disadvantages and I had actually thought about picking up a used pop-up just to go use in the more primitive campgrounds like elkmont and such. But, the advantage i have to the travel trailer right now is i can use it as guest accomadations at my house which i am doing right now actually and they are very comfortable living in it.
The pop-up i had was a fleetwood avalon that was fully loaded with all the conveniences of the travel trailer, but it just became a pain really fast to fold it up and down and to keep the canvas clean as I like to. But buying a used one just to use for "rough" camping might be a good idea.