My Dream vac would be EXPENSIVE!
A Kirby Sentria style vac with an led backlit lcd that displays belt condition, bag fill, brushroll condition, current motor speed, height setting, and "mode"(canister, shampooer, etc) touch sensitive buttons on the handle, laser headlight (bmw made them, why not?)tech drive with a digital motor ,and a carbon fiber fan spun by an 7 amp digital motor.