Funny you should mention Sandy. I went 5 days without power and fortunately it wasn't too cold. Oil lamps put out a good amount of heat and then all I had to cook on was the sterno cooker. I bought a generator after that and since then moved onto my current property that came with a transfer switch and a pellet stove. And as well as you, my sump pump and basement de-humidifier run quite frequently, so I get it. But I still can't justify the expense of the Generac installation for myself.Absolute truth there, but increased the value of the property incrementally. After 10 days without power the year before Sandy (Early fall snow storm with much tree damage) and 14 days without power after Hurricane Sandy it seemed like the only way to go. Gasoline availability was limited, and keeping a supply was a hassle. Given the high water table here I have 3 sump pumps in my cellar. Power for them is a necessity. I'm a tight wad, but had no problem justifying this installation.