Does anyone have any details on the current market share of the various vacuum companies in the US? I read in a Dyson job posting that they are currently in one out of every ten homes in America, and it made me curious about the other companies. I imagine cheaper Big Box vacuums have a large hunk - shark, bissell, etc. What I find interesting is it seems like many, many people, regardless of income in my area have high end vacuums. I suppose those would be the most interesting numbers from across the country. What percentage of homes have a Rainbow, Kirby, or Aerus vacuum, for example. Thanks for any insight.