I also would not be concerned with the generator time. I'll run mine going down the road for roof AC rather than the dash. Actually get a touch better MPG. Also our coach is a life boat incase of a power outage. My home generator will keep the fridge/freezer going and such but won't power the HVAC. First year of ownership we had a hurricane that knocked out power for four days in late August. Want to guess where we spent most our time until power was restored? Also my 2006 generator has over 1200 hours while the coach has 45,000 miles. But also I have detailed maintenance records to include oil analysis with each change.