I liked the liner notes - lyrics, songwriter credits, studio pictures and such. I do kind of miss buying a tape or CD and then playing through the whole thing while flipping through the notes.
Anymore I rarely listen to a new release from start to finish anymore. I played the new Bob Dylan album last week, and that was alright. But before that it's probably been at least a few months.
You can still buy LP Vinyl, CDs, etc. A lot of them have even better artwork than back when they were popular. I don't think the argument here is that people miss tapes because of what they came with compared to today. The argument is that tape sucked no matter what. Vinyl had the sound quality and feel you were looking for, CDs figured out how to do what tapes did, with better quality. There is absolutely no reason to go back to cassette tap for anything again.
I have a vinyl collection, still buy good new releases on Special Edition vinyl if they have it.