For me, I was interested in the Internet and got a job at a local ISP about 20 years ago. They sold shell logins and I quickly fell in love with cli. Didn't take long for me to replace win 3.1 on my old Packard bell with Red Hat 3.0.3 that I borrowed from the Admin. 12 or so floppies later I was in heaven.
What got you into Linux?