I went with LP for a couple of reasons. The 900w Ryobi I have is small, so I keep it inside the van to prevent theft. With LP I don't have to worry about gasoline fumes. Since I'm part-time, it sits unused for many months and I don't have to worry about old gas gumming up the carb. It will run about 33 hours on a 11lb. tank and for my use I only need to refill it once per travel season. That is in the summer when I drive quite a bit and with alt. charging + 180 watts of solar I don't need to use the generator a lot. My power usage is pretty low though; mainly a small DC fridge, a couple of lights, laptop & small battery charging. YMMV. Lastly, the engines in LP generators 'should' last longer because the fuel burns cleaner than gas.