Owning a Kindle boosts spending on Amazon by $443"Another way to look at Kindle Fire and Kindle e-Reader is as a portal to Amazon.com."
<p>FORTUNE -- There are two significant new stats in the survey results of 300 Amazon Kindle owners reported Friday by Consumer Intelligence Research Partners.</p>
20.5 million: CIRC's estimate of the number of Kindle devices in customer hands. It's significant chiefly because the actual Kindle unit sales number is one of Amazon's (AMZN) most closely held secrets. Apple
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Owning a Kindle boosts spending on Amazon by $443
