When comparing film cameras with digital cameras, the calculation for analogue equipment always seems to be: film cost + development cost = £x. And x is a big chunk of money and rising every week. Whereas the calculation for digital cameras is often: ten million digital photos = £ nothing. Therefore film photography is very expensive.
But in the real world photographers spend much more money on everything which enables photos to be taken, such as petrol (sigh), air tickets, hotels, meals, parking, clothing, walking boots, bags, straps, tripods, filters, etc. And those things apply equally to film and digital.
Most digital photographers also conveniently forget that they ‘upgrade’ their cameras every few years at a cost of many hundreds or thousands of pounds, and spend a lot of money on software and up to date computers to run that software. They also forget about all the hard disks, back-up disks and online backup solutions they subscribe to.
I suspect an honest calculation of ‘how much did it cost me to hang that print on the wall?’ would reveal film photography is no more expensive, or possibly cheaper than digital.