How much power does it take to be electric dependent? Our system provides a pretty plugged in experience including some A/C, electric cooking, microwave, even a bathroom heater for those chilly mornings. It's not a free for all but it's not bad either.
Worth it? It is if it fits your needs and you are going to use it. We tuck our trailer away in as remote of a spot as we can every trip and leave the generator at home. No campgrounds, no hook ups and conserving in bad weather means using the stove instead of the coffee maker and hot plate.
Now a system like ours is not cheap, small or light. A generator is more flexible and can provide more power instantly than a system many times the size of ours. It will also be much less expensive and easier to set up and use.
So what you want to do and when you want to do it will dictate what works for you. Generators are easy but there is the gas, noise and run times to deal with. You can't park in the shade with solar and it takes a lot to do a lot. That said, once you have it you will never fill it up or listen to it run.