One thing to consider as we move into the cooler months is this. Most RV's,use propane for heating and cooking,Electric is used for lighting and AC (note most does not mean all, there are some all-electric models)
30 amps will run a tv, microwave, the on-board battery charger/converter, most all the electronics, possibly even a 2nd AC depending on a few things
What it won't (usually) run is 2 AC units and a microwave or industrial shop vac all at one time
(I have had one campsite where we had to shut off one AC to run the microwave or vaccume on 30 amps)
of coruse 50 amp service has no such restrictions 2 AC's microwave and vaccume (last two on oppisite legs) works fine