We don't have a genny, though I've been pestering my parents to get one for some time now, they won't do it until we own a house and can get a transfer switch installed. I've been thinking about picking up one of those 900watt "Sportsman" (chicago on HF) 2-stroke jobbies for emergencies.
We don't really have call to use them around here. National Grid does an excellent job keeping power up, and it's only when there are things like a tractor trailer crashing into a transformer, or a major ice storm, or severe thunderstorms, that we ever have any power outages. Occasionally we get short ones that last a minute to an hour or so, but anything longer than a minute is extremely uncommon.