The answer for us is, NO. Ours stays on except when it's off at home. A lot of that is self directing as we always leave the jacks at home. Have never wished or needed otherwise. I see our small Lance as a Class C. We don't stay in one place more than a couple nights. We are travelers.
It seems there is a half and half split of the reporting TC-er's: 1/2 ON/1/2 OFF. That's fine. Whatever you require and are comfortable with. On long journeys it is comforting to know that you can park a a regular parking place (20' long) in town while traveling. On long trips it's comforting to know you can just pull down the scissor steps and ingress.
As I get older, I'm trying to cut down on the falderal while traveling. Keep it simple. I like it.
jefe
'01.5 Dodge 2500 4x4, CTD, Qcab, SB, NV5600, 241HD, 4.10's, Dana 70/TruTrac; Dana 80/ TruTrac, Spintec hub conversion, H.D. susp, 315/75R16's on 7.5" and 10" wide steel wheels, Vulcan big line, Warn M15K winch '98 Lance Lite 165s, 8' 6" X-cab, 200w Solar