I had a front row seat to the technological changes in the music industry. I opened a recording studio when you had to "edit" using a razor blade and tape to cut tape together. I remember my first time doing digital editing on a Macintosh IIfx. What happened to drummers is that technology advanced to the point where studio magic could make decent drummers sound great. But it's still cheaper and faster (and arguably better) to get a great session drummer who doesn't need it. Those pros are still in high demand.