Reason? We don't need no stinkin' Reason!
Truth be told, these are a step up from the basic recommendation and are significantly more than I need, but they were only a few Hamiltons more than the base models, so I figured what the fu-izzle? The software that all of the Ubiquiti routers run (EdgeMAX) is the same, as is the Access Point front end (UniFi Controller). The extra cash gets me a faster processor with more memory for the router and a full 3x3 antenna array on the Wireless Access Point. Because I need tons of power to flip light switches on and off with my phone (#idowhatiwant).