I have been using a bagless vacuum for some years (no Dyson), and I am quite happy. You have to clean it sometimes, and it is a bit messy, but you can do that in the sink after emptying it in the bin, so it's not like dust is going to be flying around.
I seen Henry and Hetty being used on a cruise ship and fell in love with a little happy blue guy. Too bad you cant get any of the line in USA. I dont think they have representation in North America.