Large 5'ers have large slides. They can move a bit slow on battery power especially at the end of a long boondock. A generator takes the concern about them not coming in at all when ready to pack up. A generator also allows the use of a 120v air compressor to keep tires topped off even leaving a boondock site.
2006 GMC 2500HD CCSB 4x4 Duramax/Allison, Titan 52 gallon fuel tank, Prodigy Controller, B&W Companion Hitch
2010 Jayco Designer 35RLTS, Cummins/Onan RV QG 5500 EVAP, Progressive Industries EMS-PT50C, TST Systems 507 TPMS, RV Flex Armor Roof