Institutional and commercial users will keep bagged machines in production for the forseeable future. Commerical janitorial services, housekeeping staffs at hotels and hospitals, etc., will require bagged vacuums for both health and productivity reasons. I personally don't have time or patience for the nonsense involved in emptying a bagless vacuum and washing out filters. Swapping a bag is fast and clean, especially when most bags now have some form of seal or cap you use to cover the opening after removal.
Sebo_fan, you very much underestimate the abuse a modern BMW car or bike can absorb. A good friend of mine came to the US after working many years in Research at BMW. He built and tested prototypes of both cars and motorcycles, including two of the motorcycles in my garage. BMW would bring a fleet of test vehicles to California every year mid June to mid July, establishing their base at the Best Western Motel in Lone Pine. They would pay a little tribute to the California Highway Patrol to look the other way and proceed day in, day out for a month straight to hammer prototype BMW cars flat out across Death Valley and the high mountain passes into and out of the vally as fast as the cars could go. We are talking daily temps from 40-45 degrees C, sometimes higher, foot to the floor. If they survive this they are cleared for production. He has launched them into the desert on occasion, over cooking corners at very high speeds. My friend has a great story about cactus surfing a prototype 7-Series there. They don't spare the test articles and the resulting production cars are anything but fragile mechically.
On the motorcycle side, BMW engines in the test cell were hooked to a blower and powered up 50% beyond the output the street bike engine would carry as part of their durability testing. They would also take them to the big circular test track at Nardo Italy (riding them from Munich on public roads down and back) and operate them 24/7 at wide open throttle for a week, stopping only to refuel and do minimal maintenance (lots of tire changes). While I very much dislike their take on CAN-Bus electronics and over the top electronic complexity, the mechanical parts are as sturdy and durable as anything in the automotive world. They thrive on abuse. One of my old BMW K bikes is about to turn 295,000 miles and I never have babied it other than being religious about routine maintenance. The harder you run a BMW the happier it is.
