pnichols outlined the reasons I switched from a 29' 13' high 5th toy-hauler to a C. The other is that you can do a three-point-turn on a narrow dead-end in a C, impossible with a 5th.
For wide open desert, a toy-hauler is tops. For exploring mountain roads with low overhangs a C has advantages.
I'll be pulling "toys", extra fuel, water, etc. on an aluminum utility trailer. If need be, I can unload trailer and reposition with a handheld "rack-em" trailer dolly. All RV's have tradeoffs.
Be sure to check the CCC or OCCC, C's over 30' with slides start to push the chassis limits.
Most C's have 55 gal gas tanks which serve the engine and generator--no fuel station. You could tap into the generator fuel line and add a secondary fuel pump with spark-less switch.