Finding a used Kirby vacuum cleaner is not difficult on internet auction sites or from private individuals, but finding one with a warranty still valid, is hard. Kirby sells its units today the same as it did when the company first began, through home demonstration only and its warranty is limited to the original purchaser.

Originally, through in-home sales, most Kirby vacuum cleaners would cost between $1,500 and $3,000 depending on the mood of the sales staff since they had a lot of individual control over pricing and Kirby had a finance company who accepted those with less than perfect credit histories. Although their financing and sales techniques still raise a few eyebrows, there was never any doubt about the quality of the vacuum.

Finding bags, filters and belts for used Kirby vacuum cleaners is not a real issue as they are available in abundance through online auctions as well as by dialing a toll-free number listed on the company's website. However, they are not usually sold in retail or hardware stores. The company discovered when it first began that once a potential customer witnessed the cleaning capabilities of a Kirby, they quickly became customers and preferred dealing directly with the individual.

Unlike a few other vacuum cleaner manufacturers that refurbish returned machines and offers them for re-sale, Kirby only allows it independent dealers to sell brand new equipment. Believing in offering only quality, guaranteed and durable products Kirby has managed to provide customer satisfaction with its vacuuming and rug cleaning equipment since 1906.