No, that's not what I mean...what I mean is, from your messages, you seem to be taking bits off and on your cleaners everytime you use it. Looking for dirt in filters and signs of damage to belts. I'm not knocking you, I'm saying that if you look for problems, you will find them. Vacuum cleaners are far more forgiving than some people think. Your Hoover Turbopower will see us all out. The only reason people ever got rid of them was due to eventual general poor performance through long-term (and i mean years)neglect. Once a vacuum reaches a certain age, the owner will often start to consider that they've had their monies worth.
People also get old too, and the Turbopower cleaners like yours were heavy and stiff to push. Sometimes as people age, things like their vacuum cleaner get the better of them.
Because of this, potentially perfectly good cleaners have been replaced. Not forgetting that since 1993 the Dyson brand has been on sale, and the sales of these machines speak for themselves. They are highly desirable and someone who paid £100 for a Turbopower2 today may well be dreaming of upgrading to a Dyson tommorrow.
In all my years I have only seen one of these cleaners with a burnt out motor, and it was one of the late style motors at that. There were two motors you see, the last one being very noisy, though in no other way did it seem less superior. Yours has the original soft-sounding motor.