Why? Because it works. No nasty surprises, no forced upgrades, no nonsense.
The year of the Linux Desktop was Android.
i downloaded a 200mb iso file over the course of a couple days: a [then] slackware-based distro called slax. i quickly came to understand that its packages were just tarballs overlaid on the filesystem (how simple!) and some of its GUI tools were just bash scripts calling a tool called zenity (amazing!).
i was hooked immediately. the biggest hurdle was my glorified sound card of a modem. booting into win2k to google about compiling a kernel driver, then booting into slax to try what i'd read, was a tedious but manageable task. i believe i sent away for a kubuntu cd soon after and never looked back.