Goodness no. It doesn't matter what one buys, how much one pays for it, or where the product lies within a range, as time has progressed all mass produced products have declined in build quality. A top-range product only has to be as good as the next best thing already on sale. In that respect, the Contour cleaner was of above average build quality when compared to all the competition.
If you take cleaners with on-board tools, the 'competition' at this time would have been the Philips U800, Hoover Turbopower & Turbomaster Total System, and Goblin Laser. The Contour was far superior to all of those in terms of build quality and suction power. The introduction of the Turbopower2 and 1000 was the first decent build in a long time. They Dyson DC01 had to be the worst of them all, and look at the price of that.