I really appreciate everyone's feedback and suggestions! It looks like folks are pretty evenly divided between the two options (just like I am!)
Early on, I did think about the idea of a smaller TC for trips, plus a TT for living and working. I mostly ruled that out since it would mean needing to buy 3 things instead of 2. And because if I'm going to end up towing something, I may as well go the route of a class c and tow a little jeep behind it.
The TC are what initially caught my eye for their mobility, but I'm concerned about feeling cramped living in it for 3-4 months a year. I guess I have to decide what's more important to me: mobility or space.