They are available everywhere now. I picked up one from Sprint last night, upgraded from 4S.
Only sprint iPhones are "available everywhere" if that
Incorrect. It's just as hard to find a Sprint 5S as it is any other brand.
Most people just check apple stores, but carrier stores and best buy has had stock lately for the last few days in the Chicago area. My 5 broke and instead of paying for replacement I just upgraded to the 5S same day with only a little hassle of checking stores online for availability.
FL got worse.