We had a 1978 vintage Electrolux Silverado cannister that was mostly metal and nearly bulletproof. In a moment of weakness, I traded it in 1999 for an Electrolux Epic 2000, which has turned out to be an epic piece of plastic excrement. I should have had the old Silverado rebuilt.
Two years ago we bought a yellow Dyson and that has been a wonderfully efficient vacuum. I ran a test on the carpet, vacuuming one area with the Electrosux Epic and a fresh bag. Then I ran the Dyson over the same area. Incredible amount of stuff picked up by the Dyson. Then I did the other half of the experiment -- vacuumed an exual area with the Dyson cleaned out, noted the debris collected, emptied, and vacuumed the same number of strokes over the same area. There was a little more dog hair in the Dyson on the second pass, but that was it.
The Dyson is simply a more efficient machine. We were so impressed that we bought our daughter a Dyson Ball for her dorm room at college. She gets lots of requests to borrow it, and being a chip off the old block, she rents it out at $5 a clip. Weekly income is between $50 and $80. In half a semester she made enough income to buy a replacement Dyson Ball if she had to, but the machine is like an iconic drum-beating pink rabbit.
Noah