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Kirby's are great, (my aunt and uncle still have theirs from the late 70's!) but the markup on them from a Kirby salesman is obscene. If you want one, get it on ebay or from a repair shop; unless you really want to spend well over a grand.
@Anonymous wrote:As heavy as it may be, Kirby is king. It will out last the cockroaches in a nuclear fallout.
EDIT: In fact this goes for all vacuums sold door to door. Rainbow, Tri-Star etc.