hope you dont live in an apartment that isnt ground level/doesnt have a porch if your planning on getting that gas powered generator...
if youre lucky enough to have somewhere to put it than its not a bad investment...
you just really have to look at how often you have power outtages, weigh the cost and benefits and then make the choice..
before i moved i used to have 3-4 power outtages a year atleast. No generator
now that im in a city, i dont plan on having nearly as many so still no generator.