the DC area is a different story tho -- tons of rotation through the area due to military and fed gov. they come, they go, sometimes they come back, etc.

you're rounding out a 26 year military career and looking at retirement but are going to do one more 2-year stint in Norfolk/Missouri/Georgia/whatever and don't feel like selling your house -- storage unit

you work for a junior house rep who may not make it through the next election cycle, and since youre a staffer you can't afford anything larger than a shoebox, but still need to bring your stuff, some of which you can't fit -- storage unit

etc. etc.