I could take, as a sample, the number of shots hanging on my wall made by my dslrs, as a total fraction of number of shots I've taken in total with digital means, compared to the money that I've spent on dslr equipment, then I could compare that to the number of prints on my wall, either wet-printed or scan/inkjet, divide by the number of total frames I've shot on film, compared to the money I've spent on film bodies, film, lab processing or chemicals, take into account my computer, 27" monitor, inkjet printer and ink that serves double-duty sometimes for both dslr shots and e6 scans, and the end result might tell you something about why I'm less further ahead on my mortgage than 2 years ago, drive my mum's old car that I can't afford to fix, and had baked beans, frozen spinach and rice in the microwave for dinner last night.