I would also note that the shooting advantages of the the Creedmoor apply to only about the 1 in 100,000 people who can take advantage of them. The vast majority (95% easily) of people can't hit anything out past 300 yards (if that far) and the real advantages of the Creedmoor don't show up until you are shooting well past that distance.
Yep, no doubt. Ammo availability will trump esoteric ballistic advantage by far.
Yep. And in Georgia you hardly ever get a shot out past 100 yards. AR15 and AK backed up by a Mossberg 500 tactical shotgun and two Ruger .9mm semi autos. Back it up with a Ruger 10/22 and a couple of revolvers in .22 and .38