I do not have the WiFi, but I am like you; most of my cooking is in the back yard, and for temperature monitoring I use my Maverick wireless thermometers. So I honestly don't know how much use the WiFi would get for me.
Also I have a great audible remote system for my MAK where all I have to do is speak a command and the changes are made to my MAK remotely. It's called the "Simple Oral Notification" system, or SON for short. For example: I just say, "Son, please go bump the temperature on the MAK up to 375°," and it's done!