For me, I wanted the tow rating of a truck and 4wd. This puts you into an expensive Super C which generally has a larger footprint, lower ground clearance and longer rear overhang which limits where you can go.
Spending $60K on a truck and then spending $60K on a TC is a large chunk of money, but buying a capable Super C will set you back more than $120k. When you want to upgrade, the truck + TC combination allows you to do a component instead of an entire integrated unit.
Think about those people that are audiophiles or videophiles and purchase various components for their sound system verses the people that purchase an all in one unit. If the all in one unit has a component that fails or you desire to upgrade, the entire unit needs to be upgraded (if it cannot be repaired). The people that chose components can upgrade from VHS to DVD to Blue-Ray to 3D to Internet video streaming without having to replace the other components. People that buy a TC are more like the audiophile buying components rather than buying an all in one (that may be cheaper due to integration) allowing them greater selection and flexibility than what you get in one big box. Should we be calling them RVphiles?
I am on my second truck with the same TC. Eventually, I will get a TC with different features, more capacity and greater space while being able to retain the same truck.
Host Mammoth 11.5 on Ram 5500 HD