Although floppies have long since been replaced by USB sticks and SD cards for moving data around, one advantage floppies maintained until comparatively recently was that you could always -- always -- boot off them.
While BIOSes have been booting off CD-ROMs for well over a decade, they only got the ability to boot off USB storage media comparatively recently. Prior to that, you had to burn a CD (cumbersome and, if you burned the wrong files, a waste of a CD) or write them to a floppy. This made them ideal for system installation, recovery, and simple tests.
But now booting off USB media is almost universally available in modern machines, removing the floppy's last advantage. I don't plan on pulling out my Teac drive, though...