From what I heard from an "old hand" at WalMart about 3 years ago the film is developed, scanned, prints made, a CD of the images and the prints are made available to the user, and the negatives are DESTROYED! She, the old hand, was disgusted as was I. Of course the images were sent "over the wire" to the user's store, resulting in a savings for .... WalMart! What a surprise! How disgusting to destroy the negatives for the savings in mail or courier service. And sadly the general public doesn't know how they're being cheated.
In the past Eckard and CVS furnished at least adequate processing and printing, but no more. I tried CVS near me. The turn-around time added up to about two weeks, and the quality was abysmal. Our local Costco no longer offers film service; indeed the local "business" Costco doesn't furnish photo printing services. Prior to the change to the "business" model our Costco had a very knowledgeable manager; she knew about profiles, etc. The prints were excellent, BW prints made from a BW negative I scanned in were neutral, which I consider a good test.