Another facet of this "wastage of images", is the fact that when I was working professionally, I noticed that photographers brought up on digi cameras constantly "machine-gun" their subjects in semi-panic mode, whereas the ones who learnt their craft on manual film cameras like myself, would concentrate on the subject and shoot a single frame at the "vital moment", when you knew instinctively everything came together and the expression was "right".
This meant I could fully cover an assignment with 30 frames or less shot, whereas the digi born & bred photographer would be wading his way through more than 200 shots, in the hope he'd got a few that were relevent and sharp.
One of the main benefits of film photography are the various formats, particularly medium format, that allow you to compose carefully and "get it right on screen". Whilst digis have live screens on the back, they are not optical, and often give a false impression of brightness etc., plus, use them too often and just watch your battery drain away.