Tangent to your point, but I think Dyson is generally considered to be overpriced for what it is. Shark and Kenmore are just as good by most metrics and are less expensive, whereas if you want reliable products then you get Miele or Sebo. Dyson's one selling point is that they're typically close to or on the cutting edge of technology, so they're the best if you value noise and size more than price and reliability.