If you want to use it while camping too, then go with a quieter inverter type.
A 1000W is small and very lightweight, use to recharge the batteries or the lights and TV, too small for space heater, microwaves and such.
A 2000 is fairly small, fairly lightweight, can run anything but the air conditioner. For larger loads such as the microwave, hair drier, or space heater, you need to run them one at a time.
A Yamaha 2400 will run the air conditioner too, now you're getting into the top end of the lightweight category and you're over $1000.
For the most part the cheaper priced noisier generators are good for home emergency or work use where the noise it makes doesn't matter. Some folks use them camping but most neighbors frown at them.
The bigger quiet generators, 3000w and up, are out of your price range.
