Generator:
1. Texas is home, Arizona is kids: hot is us. Air conditioning works great, but takes an hour or two to cool the rig down: worthless for a meal stop.
2. We've camped without hookups maybe 25 nights this year. Every CG we've seen  restricted generator hours. All those no-hookup nights were winter/spring or we'd have been miserable.
3. A 2kw generator will recharge our batteries running an hour or so once or twice a day.
 Conclusion:
 - When we need the AC, we need shore power.
 - A small lightweight generator does everything else just fine.
.
Leveling:
 One difference FW vs MH: once we're set up on a site, the rig stays; no re-leveling after we drive into town.