Dyson seem to be the champion of turning a cheap effective device that's well understood into the same device but an order of magnitude more expensive. Are people still buying it?
Of course they will. People buy rubbish like this all the time. Here I am in a hotel room with a Dyson fan, which simultaneously moves less air, and is more noisy, with a much more piercing tone, than my home fan with blades that I bought for £30 from screwfix. I'll be turning it off before I sleep... unlike the one at home.
Only an impeller with blades