I have not owned a generator, and have been camping in a trailer for about 15 years. BUT, we camp in the mountains in the west, so it is rare that it is so hot that we would have liked to run the AC.
We have had 100w solar, 200w solar, and now (overkill) 320w solar, all roof-mounted panels. With only 100w, we would occasionally draw battery down low. Once I added a second battery (110aH ea), we only ran low if it rained 3 days straight. After adding the second panel, we have never run low on power.
So, my current setup of 2 110aH batteries and 320w of solar (overkill, as 200 would be fine), even with no sun for days, or camped under trees, we get enough solar input to top-off our batteries daily.
Now, if you camp where it is over 85° and humid, you likely want a generator, or pair of Hondas, to run AC. Pair of Hondas are easier to move than a single generator, but more expensive. Don't bother the neighbors, though. Generator noise is annoying to most of us who can camp without.
