Well, I still use 3.5" floppies with my venerable Sony Mavica digital camera. Since I never use the pix anywhere else but the computer, the low res is just fine. The floppies are cheap, ubiquitous, obviously fast to use, and the pix can just stay archived on them -- no need to download them to re-use the "film". I had to order an external USB floppy drive for my laptop, but it will work on anybody's computer if they have USB port, meaning I have a universal method to transfer my pix.
Obviously this is not the optimum set up for anyone who needs or wants high res pictures, but it's perfect for me, so much so that when I accidentally dumped my old Mavica in water, I bought the exact same model, used, on EBay rather than upgrading.
PS - when my insurance adjuster came to estimate the damage from the hurricanes, he was using a floppy disk Mavica for the same reason -- he just used a new floppy disk for each client and threw the floppy in the file to archive the pictures.