In the United States your can still get Miele with the electrobrush with the exception of the boost CX1 but, Miele probably changed that with a Boost CX1 electro+. Australia still has 2000 watt Mieles. In the US vacuum cleaners cannot exceed 12 amps due to UL regulations which is why we never saw Miele vacuums with suction motors that are above 1200 watts so they can sell their vacuums with power heads.
There is the Ultra Nova, but that powerhead uses a rechargeable battery and is out of production, they still probably do for places outside the E.U, maybe the SEB 217/228.
lol you should have plenty of money by now from youtube to buy a real house, dont need to keep renting. look at the monthly rental cost you paid and tally it all up for how long you've been paying it this entire time you've lived there - bet you could have gotten 3 or 4 houses with the cost. get you a nice house in the countryside, have a big barn on it, fill it with vacuums and have your own museum !
I live in a house that's paid for, it's not rented. The rent I pay is for a storage unit as my house isn't big enough. You probably have no idea how much an average house costs in the UK, but they are very expensive unless you buy in a rough high crime area. I am quite happy to keep a small collection of machines I really like and sell the newer machines after I've demonstrated them.