I recently read an article where they said the TC market is booming and sales are well outpacing the rest of the RV industry. Then, last weekend I had to make a visit to the dealer where we bought our NL down in Colorado and the owner echoed the same comments as the article. They are crazy busy and to get a camper from the manufacturers they sell is taking 4 plus months. I think people are seeing that with a truck camper the ability to get to campgrounds not easily accessible by tow behinds or motor homes is a lot easier and much less stressful.
The TC market is still niche compared to the overall RV market but it is growing quickly and outpacing them by far. We love our TC and for those that believe they are too small, well, I guess you need to look at what kind of camping you enjoy. For us, unless the weather forces us inside, we spend very little time inside the camper other than to cook, sleep and bathe.