I was gonna say - anything but Dyson! Had two, they both broke. Powerful, but fragile.

Old hoovers are still maintainable, and commercial-grade Miele's are supposedly very good.

Having said that, I've had my Dewalt shop vac for a decade without trouble. It's remarkably difficult to kill a construction site shop vac.

My wife says I'm a redneck for using it around the house, but she always ends up using it when her 'civilized' ones break.