I kept my last phone well after I should've probably replaced it because I didn't want to go to the store. Maybe they should try some secret shopping, it might show the flaws. Impulse buying a phone (not that it's something you should do, but probably something they want to encourage since nobody buys new phones anymore) is absolutely impossible right now.
(What I'd really prefer is if they'd just allow me to give them money and just hand me the new phone, but inevitably there's some account crap that happens where the new phone won't activate properly and I have to get another phone to call 611 and figure it out.)
Edit: It might just be because of my families phones being on a business account. We've tried to upgrade (or just buy the darn phone without a contract/loan) through the Apple Store before but they won't do it because their POS system can't handle AT&T's business accounts, and even unlocked devices need to be notated there for some reason.