The iPhone has more functions just considering that it's a phone. Maybe they had some older iPhones and they were trying to get rid? If they're new ones then I'd buy a few just to resell since they're a ridiculous price in most places.
"Our world cannot be viewed through the glasses of common sense" - Masato Arai.
JRPG/Japanese Culture blog: http://shrinetoamaterasu.blogspot.com/