On a more serious note...
No Dirt Devil machines have anything resembling quality in them; ALL of their models are cheap and not meant to last over 6 years. If they do in fact last 7+ years it's a damn miracle. Yes, Dirt Devils are the epitome of the throwaway Wal-Mart vacuum.
The early Dirt Devil "Upright" or "MVP" models (clean-air) were NOTORIOUS for having the flimsy bag cover crack in the center due to it flexing inward because of the suction. I've seen many like this. I also had a Broom Vac (not the broom, but the upright) where the rear bearing on the crappy GS Electric motor was all but gone, and I got so furious at it I ended up smashing it to pieces.
While I'm not positive, I'm willing to bet that all of the DD motors are made by GS Electric. Tom Gasko would definitely know, and would probably post what he thought of Dirt Devils in this thread as well had he not been UNFAIRLY banned from posting on here for no reason whatsoever...don't EVEN get me started on that!!! What a joke.
--Austin