Apples vs oranges and don't critisize my baby! Haha. Laughing at all the flying fur on this one. The answer is simple: Two RVs of the same outside lenth, the 5ver wins in inside space PERIOD!!! NO engine, no dashboard, no driver and passenger seats. That doesn't mean a 5ver is better or worse. Its just different from a MH. That extra interior space given the same exterior length equals more interior length for a bigger kitchen, or a bigger living room, or a bigger bedroom, or a bigger bathroom or a combination of one or more of each. Scream all you want, its the truth. I've owned two 5vers and now my second MH. They each have advantages and disadvantages. A high end 5ver has all the same stuff that a MH has including power leveling, big tanks and generators. The only significant item it doesn't have is a drive train. So it all boils down to personal preference. They aren't the same thing. I'm guessing a lot of you have not been inside a big high end 5ver lately. You would be surprised.