I agree with what's being stated, but also think that comparing a regular RV without a generator to a modern generator-less RV makes little sense. They are too different. Besides, a dedicated high-capacity engine-driven second alternator like most of these rigs have is a generator for all practical purposes.
All motorhomes I've rented had generators, as did my Class C, and I used them very little. I've also rented travel/camping trailers and only one had a generator, which I didn't use at all.
My existing van doesn't have one and really didn't miss it until a little over a year ago when we attended football games and overnighted at a school parking lot. If not for needing air conditioning, I'd never consider a generator. In Europe where temperatures are cooler and many motorhomes don't have A/C, they often don't have generators either. Solar and/or engine alternator is enough to charge batteries when there is no shore power.
In US we expect all motorhomes to have generators, yet few trailers have them although they serve a similar purpose. I guess it depends greatly on how much inconveniences we're willing to tolerate from time to time.
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