Floppies are still sometimes useful for BIOS updates, diagnostics,
Maybe for home-build bodge jobs ... but for branded machines built within the last 5 years chances are BIOS and diags can be either done "online" or through a CD.
booting up old OS's, for playing old games like Doom
Nostalgia rather than necessity
..... however the word "Doom" does bring back memories... remember "Lemmings" ?