BirdSongPlace,
Some of the very reasons we have always had a truck camper at all times among our TT's, 5th wheels, and Class A's & C's MH's. They are literally perfect for driving about anywhere especially to Alaska etc, camp anywhere and especially on the very tight sites, boondocking where you want to (legally of course) by a lake or on a mountain top or you name it, and you still have the truck as a great safe vehicle. We always buy a 4X4 so even roads are not needed with or without the TC on the back. You can take the TC off when home or if desired pr leave it on and it's even a grocery etc getter or your own conviences of home vehicle anywhere you drive it to when not traveling/camping. Get a pizza or a meal to go and park at any lake, park, game, the woods, etc and enjoy to the max. Still pull and easily launch a boat or etc when desired. Most states only require a registration plate for the truck and TC insurance is ultra cheap. An extremely universal rig!
The newer TC's have so much usable room and many models are not claustrophobic even on a long rainy weekend. Have everything inside that TT's, 5th wheels, amd MH's have for human needs without having the length issues. Increasing numbers are full timing in the new TC models now offered. Some even have a foot/reclining couch with having a very comfortable fixed large dinette and liquid holding tanks (fresh, gray. and black) the size of many of the tow behinds and MH's. Having a TC on a crew cab truck lets you use the back seat of the truck for so much more storage of clothes, canned dry etc goods or anything esle you desire for long time length and distance trips and still fit in about any CG site or boonie site.
Also, better fuel economy and much easier to drive on crowded or busy roads/streets etc.