In an RV park with on-site power, about the only time we normally use our generator is during a power outage. When boondocking, we run it as often as daily for a couple of hours to recharge the batteries, usually timing it for a time that we also want to brew coffee and/or use the microwave when convenient and consistent with any park generator rules. Since we're in a motorhome rather than a trailer, we also run the onboard generator when underway when needed in hot weather so we can run the roof A/C's. All in all, lacking sufficient solar panels to maintain the batteries, I think a generator provides a better camping experience when used moderately so as not to annoy other campers.