We have had Dyson vacuums for over 25 years, and I almost bought a new one today.  The problem is that the one I have will not push or pull easily, and I was told by Dyson that it was the fault of my carpet.  Well, I still have the same carpet, and like some of the other online folks, the Dyson was the best for animal hair, but Dyson’s help was useless.  Finally, out of utter frustration, I found a “fix” online, and have been able to use the vacuum by “breaking” something off.  Dyson then told me I voided the warranty.  Well, I am in the market for a new vacuum, and found the Dyson Animal on sale in Sam’s Club.  I had it in my cart, and had second thoughts.  If Dyson has not fixed the problem, I will be back where I was.  As I said, Dyson was no help.  I did not buy such an expensive vacuum not to be able to use it as an upright with a rotating brush.  When I looked at this forum, I found others with the same problem.  I experience it from the get go.  Other than replacing carpet, or putting a floor attachment (which left dog hair behind), is there any real fix to this problem?