Yeah, but not all of us have garages. We live in a small house with basically zero storage room, seeing as I turned the basement into a rental suite to bring in extra income. I have nowhere to store extraneous things, and as such, live by the 'have no more than one of anything' rule. Therefore, no shopvac for me.
I'm sorry, Snowman, but some of us don't have the luxury of keeping our cars pristine all the time, although we try our best. There was a time, when I was single and living in a bachelor pad, that having tools to keep my cars pristine was no problem. Having a wife and kids changes your priorities somewhat, though, when deciding what to do with limited space. You try cramming a family of four into 800 sq. ft.