We've had both and recently traded our Class C for a 33' TT, and are very happy so far. We did it for exactly the same reasons you mentioned. Having a truck to run around in is very important if you are not going somewhere just to use the facility. The MH's were easier to drive, especially our 24', but having transportation when you arrive at your destination makes up for it. I also had a tow dolly and towed our mini-van a few times behind the MH, but had to be careful not to get blocked in that you needed to backup, because that was another project.
Another plus for TT is less expensive insurance and registration...at least here in NY.