"Only AirPlay Receiver With WiFi Option!"5.0 starson by benjimen
Pros: WiFi connectivity option to home network
Cons: No AirPlay video passthru :(
Summary: Yes, the WiFi dongle is pricey, $50 would be more appropriate -- but at least there is the option. The Denon AVR-1912, preferred by the reviewer, must be cable-connected to your network -- there are many environments where wireless is the only network connectivity option for home entertainment gear.
Without an option for WiFi, I'm surprised the reviewer considered the Denon receiver comparable.