I purchased only one 2KW Generator just to be able to re-charge my battery bank direct connected to the trailer shore power cable. With the on-board smart-mode converter/charger I can recharge the batteries up to their 90% charge state and run all of the 120VAC items from an inverter and 12VDC items directly off the battery that we want to run.
Being on the East side of the US I was not able to find many places that allowed me to run my generator more than a couple of hours in the morning and maybe three hours in the early evening. The National Forest places sometimes will allow generators from 8AM to 8PM but this not the norm on this side of the US yet. I could never find a place that allowed me to run a generator all night long - maybe at a NASCAR place or on private property somewhere. Knowing this I could not justify the cost of having a couple of generators just to run an air conditioner. My 2KW Honda will only run for around 7 hours on its built-in tank anyway.
Where are you going to run yours. I know out West there are places like the dispersed and non designated areas that you can run a generator just about anytime they want to. All of those seem to be West of the Mississippi River... Sure is not the case here around my camping world.
This is the reason I beefed up my trailer to run all of my 120VAC and 12VDC toys from my batteries and then only run the 2KW Honda generator as short as possible when allowed to run one. This of course does not allow me to run my Air conditioner or high wattage microwaves when off the power grid camping.
We do most of our camping off the power grid three to four days at a time and sometimes as long as two weeks. Have no problems cycling our batteries from 50% charge state to 90% charge state but after a couple of weeks we must recharge the batteries to their full 100% charge state or otherwise will start doing damage to the batteries.
Would not go anywhere without my 2KW Honda generator. It is anchored in the back of my truck bed near the tailgate corner and is covered with a locking folding hard top bed cover when not in use.

Just my thoughts
Roy Ken