I know a lot of people will say that its not "real" camping if you use certain modern conveniences but I don't consider anything about camping in a trailer to be "real". In my mind, I haven't done any "real"camping since I hung up my backpack. So don't worry about what people say and put whatever you want in you trailer. My *opinion* is you might as well add shore power and go over to the dark side since you're most of the way there anyways. It's nice to be comfortable.
Or not, after all, it's your trailer.
Bruce