Hi Rita and welcome to the forum. Buy what feels good to you. But Tina is right, look at what the cabinets are made out of. How those hinges are connected. At some point you will drive over washboard roads and if those cabinets are not wood, they tend to fall apart.
I have an RV but trying to sell my house, so I can figure out what I want to do when I grow up. If it is crazy, then join all the rest of the crazies right here.
Keep us updated on what you look at. Oh by the way, I understand Coachman has been bought out by Forest River. Forest River does make a nice coach.