rise of canisters in the United States
Uprights are still really popular here too, but some people think canisters are making a come back here. Personally I'm not a fan of uprights, I think canisters are far more flexible, if you need to clean carpets, get a canister or central vacuum kit with a power nozzle. The backpacks are really nice too, those are basically the same as canisters, you just wear them on your back.
