Now, here’s a really good reason why Apple boasts a market value of $575 billion. Half of U.S. households now own at least one Apple device, according to a new survey of 836 Americans conducted by CNBC.

That’s one heck of a lot of iPads, iPhones and Macs. In fact, the survey found that American households on average now own 1.6 Apple devices.

“It’s a fantastic business model — the more of our products you own, the more likely you are to buy more,” said Jay Campbell, a vice president of Hart Research Associates who conducted the survey on behalf of CNBC. “Planned obsolescence has always been a part of the technology industries sales model, but Apple has taken it to a whole new level.”

The results were released as part of CNBC’s All-America Economic Survey, which found that 61 percent of households with children own an Apple device. Other findings: 57 percent of homes in the western U.S. own an Apple device, the highest of the U.S. regions. Also, just 28 percent of Americans who make less than $30,000 per year own an Apple device, compared to 77 percent of those who make more than $70,000.

The survey highlights just how important the mobile computing market is becoming in the U.S. And it shows how Apple continues to clobber Microsoft, which grew to prominence in the 80s with the slogan: “A PC on every desk, and in every home.”

But the mantle has been passed, at least for now in the computing arena. Apple’s $575 billion market value is more than Microsoft, Google and Amazon.com — combined.

Here’s a look at the chart from the survey:


[Apple photo via Bigstock]

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