The very reason we still have a TC is for taking it with us every time we feel like or leaving it at a campsite.
Many times we travel back roads or over some access roads in parks that are not so good for trailers but fine for TC. That trade off is not something we are willing to make. Getting in and out of a bed it not that big a deal, at least not yet, and we're not spring chickens anymore (70's) ...
We don't off road or back road as much as in the past, but we don't like the idea of dropping our house off unless we have to, and most often, we don't. But with a TC we have that choice - with a TT, 5'er, and most MH, you don't. Probably a "B" would be next best...as it goes anywhere a TC can go.
The main difference is the bed - make it up every time, break it down? Nahhh, I don't think so.