As an aside, I really can't understand why people are so enthusiastic about Dyson products - I find them to be poor to use and poor performers. My gf has a dyson vacuum cleaner (a v6, I think), and it's terrible. Battery life is minimal, the suction is poor compared to anything I've used in the past, all the novelty parts of it (motorised roller, etc) turned to filthy junk pretty quickly, and it trashes the bearings for the carpet roller with monotonous regularity as it can't deal with hair (household with three females with long hair). Emptying it can only be described as like giving a Wookee a prostate examination - it's a revolting process that makes mess everywhere and means I have to scrub my hands afterwards (it doesn't empty like it does in the advert if you have any hair present in there, which there always is in my case).
I had a V1 dyson back in the day, and it was useless as you couldn't get under any furniture. Dyson hand dryers in public toilets don't dry your hands in the claimed 10 seconds, they take about the same time as any other dryer, and usually lead to wet washroom floors as they blow the water all over the place.
I just don't get it - is it form over function and people go mad for them, but clearly I'm missing something. I know he employs incredibly clever people, and no doubt things have been engineered within an inch of their lives, but it always seems they're optomising variables that I don't care about.