I finally had enough of the crappy lay out of my garage shop. One whole wall (the wall where my tools live, of course) featured one measly outlet and no dust collection save a tired shop vacuum. It's been a constant, annoying hassle to pull tools out, find an outlet/extension cord, pull out the shop vacuum, find another outlet, (preferably on a different breaker) move the one 4" to 2-1/2" hose adapter from the last tool I used, use tool, then do it all over again for the next tool. It really took me out of the zone of building. On top of that, I had an older dust collector I had gotten for free that was in a corner, unused, collecting dust in the wrong way. I had a little bit of extra money, and decided to solve my problems all at once.