Thrilling topic here...
I have a shop vac that I use for wet jobs around the boat, but usually end up taking out the filter as it doesn't do that well when getting wet. So if I try to do dry I have to swap the filter back in and that just gets disgusting.
I was looking at getting another small shop vac for dry only, but then thought perhaps a canister vac with rotating brush head would work better. As long as I can put some attachements on it. I'd just be using it for cleaning out my the boat carpeting. I'm looking for high power and good cleaning ability of course. I can't stand a dirty boat carpet and would love to be able to get a nice clean in 3-4 mintues.
What's everyone using?