Let's see...
I don't need a Polaroid camera to check the lighting and composition (or a back and a loupe).
I don't have to send my slide film hundreds of miles (maybe thousands today) and wait a week or so to get the results.
Slides are like JPG(s) without the compression artifacts. What you see is what you get w/ black, unrecoverable shadows.
To get it in a computer it has to be scanned or copied with a dSLR.
True that a film camera is almost free but then you pay every time you use it. It's like a Toll Road where you stop and toss or hand over your money (if they still do that?). I haven't been on the Pennsylvania Turnpike in decades. I wasn't even old enough to drive.
I can't imagine what they were thinking, but I see Pirelli got someone else to photograph the 2018 calendar, so I don't need a Polaroid to check lighting either. And it is true that it takes time to develop and scan film, but it's not like I would otherwise be spending that time working on a cure for cancer. And, sure, if I had to shoot tethered so photo editors in New York could see immediately the pictures I take in Paris only digital would do, but I just don't get a lot of call for that.
And even if I did, none of those things are advantages of digital in the actual taking of a photograph, they are advantages to one kind of photography
business.
The idea that there is no per-image cost with a digital camera is wrong. The per-image cost is the purchase price, less whatever you sell it for when you upgrade, divided by the number of images you have taken. Of course, with digital the marginal cost of one extra image is zero and the more images you take the lower the per-image cost, while with film the per-image cost is the same however many rolls you use. So professionals are much better off with digital. The cut-off for 35mm is roughly 200 rolls a year, assuming you do your own developing. Since you can buy a medium format film camera for $300 and digital medium format costs $25,000, for medium format there is no plausible level of use at which film is not cheaper.
I am bemused by the idea that when it comes to Photoshop it is sensible to have ongoing payments but no up-front payment, but when it comes to the camera a high up-front payment and no ongoing payment is much
more sensible.