When you use the phone in public or at work, you are going to find that you spend a lot of time answering questions about your phone. When people see you holding the phone, you become and Apple Genius in their eyes. Randoms are going to be asking you:
"Oh, is that the iPhone 6 or the 6 Plus?"
"Why didn't you buy the smaller one?"
"Did you get a new phone?"
(Nah, I just got a rolling pin and flattened my iPhone 5. I mean... c'mon random.)
And the most annoying question/ statement of all?
"Isn't that the one that bends?" / "You know it bends yeah?"
(If I had a dollar for every time I've heard that this week...)
(I feel like Apple should include one of those Genius Employee shirts with every iPhone 6 Plus, because you basically become an honorary Genius after the purchase.)