I didn't compare a 2010 iPhone to a 2012 Nexus4. What I did do was look at depreciation values. And you just helped me make my point. How much was an iPhone 5 new? Approx $600. Let's say it sold for what you listed of $287. That is $313 of loss or approx 50% of its value.You cannot compare a phone from 2012 (N4) to a phone from 2010 (iPhone 4). Please select any Android phone from 2010 and price it and post the range that it can be sold for. Go on Swappa for the info.
If you want to compare the price of your N4, then compare it to the price of the 2012 iphone 5. Both are 2012 phones. An unlocked iPhone 5 has an ASP of $287.6. An unlocked N4 has an ASP of $142.3. This is Nov 2014 pricing.
The Nexus 4 was $250 brand new and your price for sale shows $142. That is only a $108 loss or a depreciation of just 43%.
So which is ultimately the better deal? See the difference?