About 10 years ago we traded in our TC and bought a 24' Nash TT, because the 2 kids were getting too big for the truck camper.
Now I was driving a 50' train around. We found out how easy it had been to park the truck/TC and how much towing a TT limited where we could go. One time we arrived early at an aquarium and even though I thought I had us parked in a good spot- far end of the large parking lot with a good escape route- we came out to find our truck and TT trapped by several randomly abandoned vehicles.
Gone were the easy lunch stops on our way to a campground. Much more planning to fuel up in small towns.
Sure the increased TT floor plan was nice, but we value the mobility more.
TCs for us.