I turn mine off between trips. I think it depends on the particular situation. For a seasonal camper that visits the camper everey couple of weeks, then leave the fridge running and stocked. A seasonal camper that doesn't expect to be back for a month or more, unload the fridge and cut it off until you return. For those that travel every couple of weeks, then cut that puppy off.....unless it is being used as a overflow for the regular fridge. If you camp travel every weekend, then it might be better just to leave it on, instead of recooling 4 days after you cut it off.
Chap , DW Joy, and Fur Baby Sango
2006 Ford F150 Super Cab 4x4
2008 Surveyor 263