I remember one of the posters on another board talking about Touhou and capturing spell cards years ago, but at the time it didn't really interest me. I watched some Touhou related stuff on youtube [Precious Thing, McRoll, etc.] but still didn't think about it much.
Earlier this year, I really got into Vocaloid, and I ended up watching the Vocaloid version of Overdrive, which peaked my interest in the series.
Finally, around the beginning of June or so, I finally started playing the series, starting from EoSD. Now I play it on and off with no chance of hell of ever getting past hard mode.
Yeah, not a very exciting story.
On a completely unrelated note, I actually did one of my college presentations on Vocaloid. No, I don't have a life.