My biggest gripe about the progression from physical to digital audio media may seem niche but it's very important to me and many classical enthusiasts. If you had a CD or vinyl recording of a symphony, the info on the back told you exactly; who the orchestra was, who conducted and most importantly in which year it was recorded. This meant you knew which musicians were in the group at that point, was it originally recorded in analogue and then digitized, where it was recorded etc.
The way that digital media is catalogued and the info displayed online, there is no company that presents all of this very pertinent info clearly and of course it's because it isn't worth their time financially. Often labels release recordings and so if you go to buy something online that eg looks like a recent recording of the Chicago Symphony, it may actually be a re-release from 1950 recorded with a tin can and a piece of string.