I started playing and collecting Magic at the tail-end of Scars of Mirrodin.
The first mythic I ever opened was Archangel's Light, and it didn't even make me quit Magic.
I exclusively played gloriously-crappy kitchen table magic with one of my buddies until my first foray into limited: the Theros prerelease, at which I did terribly. From that moment on, I was hooked on limited.