Half of U.S. homes own Apple products – USATODAY.com:

"That's more than 55 million homes with at least one iPhone, iPad, iPod or Mac computer. And one-in-10 homes that aren't currently in that group plan to join it in the next year. But Apple doesn't have to worry about brand saturation any time soon. Americans don't stop with just one device. Homes that own least one Apple, own an average of three. Overall, the average household has 1.6 Apple devices, with almost one-quarter planning to buy at least one more in the next year. "It's a fantastic business model — the more of our products you own, the more likely you are to buy more," says Jay Campbell, a vice president of Hart Research Associates, which conducts the CNBC survey along with Bill McInturff. "Planned obsolescence has always been a part of the technology industries sales model, but Apple has taken it to a whole new level.""
(Via USA Today.)