The Curious Craigslist Market For Empty Phone, Laptop Boxes : All Tech Considered Help us, All Tech readers. What's up with all the "box only" Craigslist ads for the empty packaging of iPhones and MacBooks?

The Curious Craigslist Market For Empty Phone, Laptop Boxes

Boxes of the new iPhone 5 are displayed at an Apple Store. On Craigslist, used, empty boxes are offered for at least $10. Justin Sullivan/Getty Images hide caption

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Justin Sullivan/Getty Images

Boxes of the new iPhone 5 are displayed at an Apple Store. On Craigslist, used, empty boxes are offered for at least $10.

Justin Sullivan/Getty Images

A quick scan of Craigslist reveals a curious market for not just smartphones and computers but the empty packaging of smartphones and computers. On my local Craigslist, a MacBook Pro box — "box only," as the sales pitches read — goes for $19. A MacBook Air box will cost you $15. And a Samsung Galaxy S4 box sells for $10.

This box market seems limited to the smartphone, tablet and computer packaging, and not boxes for, say, televisions or jewelry. Sure, a lot of computer packaging can be impressive in its engineering to fit all components snugly. But $19 for a box? What's going on here? We're hoping you can tell us.

A screen grab from a "box only" ad on Craigslist. It's not the only such ad that you'll find. Craigslist screen grab hide caption

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Craigslist screen grab