After using your iPhone for 18 months, it still retains 53% versus 42% for Android, and 41% for BlackBerry. That’s $312 of cash value if you resell your old iPhone on eBay or Craigslist. iPhones have a reputation for being premium products, while Androids have a more democratic marketing angle (BlackBerry’s consumer marketing angle appears to be indecipherable). In fact, the cost of ownership of an iPhone is the lowest of all platforms.

Study confirms what we all knew: a quality product retains its value much better over time. This isn’t really s selling point for me, I don’t buy an iPhone for its resale value, but for plenty of people such an argument could influence a decision.