Fair enough. I've not done that since you had to for the early iPhones.
I remember I think it was the 3G or 3GS having to get to the store like 5 hours before it opened as it was just a queue based system back then. Was first in line. Got in and already their payment systems had crashed (O2 store, only carrier it was supported on back in the day in UK) so waited like 1 hour. In the end had to leave for work and they said they'd put one aside and let me pick it up at lunch which I did.
I like the low hassle of getting it delivered these days but admit it's not as bad in-store as the early days