I liked to watch my brother play his games, and for a while he used to only ever play TP. Then he moved on to Smash Bros. which I got to play with him and I always used Link or Zelda/Sheik because I recognized them from games he'd always play. Then he got SS and of course I watched him; he never finished it and it bothered me that I never got to see how the game played out, so I look up a walkthrough on YouTube.
I actually stumbled upon the ZeldaDungeon.net video walkthroughs for most of the Zelda Games and they got me hooked on Zelda. So I bought myself a copy of TP for the Wii and OoT for the 3ds. I even have a MM skin for my 3ds, not to mention the Toon Link plush and other merchandise from the franchise.
I love re-watching the video walkthroughs and even reading them, so last year while I was at lunch reading the walkthroughs I learn about ZD-i and the rest is history.