I have a few portables and a few decks, with a still growing large pile of discs, I find that altough I have other newer equipment, mp3 players etc, I just really like the MD and continue to like it. The sound is good, it's good at recording and the little discs have a certain attraction of their own that I don't see in flash drives, CD's etc.
I don't see myself as belonging to a cult, though when I meet someone who I discover also has a MD deck/portable, you often pick up a certain vibe and it's all good.