Sometimes you'll hear about a series of games (or maybe just a standalone game) that your friends/family/etc. tell you about. The series may not interest you at first, but after a while you decide that you might as well try it.
What game(s) was that for you? Did you end up liking/loving it or did you hate it/dislike it anyway?
Mine is SMT: Persona. Persona was a series my friend kept nagging me to play, and I saw it, and I saw him play it and it didn't look all that great to me. Eventually I ended up buying Persona 4: Golden on the Vita and realized that the Persona series is amazing.. and Ive been a big fan ever since