Well my
current-model French car has a digital dashboard and it works pretty well, although I'm not sure I wouldn't still prefer an analogue display for most of it. So, I don't think I'd agree that they've "disappeared completely".
However, given a choice I dislike digital watches and digital cockpit instruments. In my opinion an analogue display shows rate of change much better, it limits are showed by coloured arcs it's much more immediately obvious where your values are relative to limits, and you don't tend to chase inappropriate precision in your flying.
G