Conservation: Film is still the best way to conserve images. For one thing, a negative can be reprinted and even scanned at different sizes and into different formats. It does degrade over time but so does digital and digital is less reliable over the long term for conservation. Digital files are pretty much in the highest quality they ever can be when you make them and it’s very hard to get them into a new, especially larger format without losing a noticeably in quality.
Practicality: This is where digital shines. With one flash card you can take 100s if not 1000s of photos and they are all available to look at instantly. Processing film takes a room, chemicals and lots of expensive equipment. Not mention money. Once you have a a computer and a software for image processing (Photoshop is an example but there are more and more alternatives out there now) you are almost without limits as to how you can manipulate the photos and even make as many versions of it until you are happy with the results. many of the techniques in Photoshop are from ones used in dark rooms over the last century or so it’s just easier to accomplish now.
The longevity of cameras: Film beats digital hands down in this respect. My old medium format from 100 years ago still works fine and can take awesome photos. Digital, is different, there is the every changing technologies, formats and the limit to the camera’s sensor lifespan. I also find digital cameras to be more expensive overall, something I don’t understand since they don’t last as long.
Quality of image: This is a personal choice in many respects but I still find film a higher quality image and I think technically the amount of information in a digital image is still a long away off from the information you can contain on film, in most cases. I have yet to get images I like as much in digital that I got from my medium format camera. To be fair I don’t have medium format digital camera, nor the 10 000$ it would take to buy one.
This conversation is pretty useless nowadays: While I might pine away for film, the fact of the matter is film is pretty much dead and even now is only used in a shrinking specialty market. Digital is not going away and the quickness and convenience of it doesn’t make it a bad thing at all. I do wonder and hope that eventually digital will catch up in the areas it it currently weaker in.