Because whose new vacuums die in no time. And I'm afraid to spend big $$$ because I'm worried those vacuums will die as fast. I might give Miele a try though.
Replaced our Dyson upright with a Miele canister -- it's considerably easier to use, and picks up dog hair better. It uses more consumables but the combo pack of a filter + 4 bags they sell will cover about a year of use. Overall I'm much happier with the Miele.