I dry camp. I use LEDs. I see a lot of fellow RVers dry camp in places I go. I would not assume dry camping by RVs is unusual at all.
As posted the LEDs have some other smaller benefits such as cooler running fixtures, less energy consumption, and less load for the air conditioner. The 18 watt 1141 bulbs are inefficient even by incandescent standards and fully lit RV could draw 400 watts. A beauty of LEDs is the efficiency scales to even small lamp sizes. Incandescent and fluorescent lamps tend to get more efficient as they get larger.
Another minor plus: more lights are possible before the converter fan kicks in.