I explain it the way it happened for me.
I previously did not care for the aroma of cigar smoke (that's an understatement). One day, while walking back to the office from lunch, I happened to be either behind or beside somebody smoking a cigar and it's aroma would not let me forget it. I fought it for a couple of weeks to a month at the most and broke down, went to the local b&m and bought a few. It's been a downhill coast from there.
That was a few years ago and to this day, I still wonder what that one cigar was that drew me in. I know I'll never know, but I'll always wonder.