I think you did fine.
Sometimes it's tough when the person tries to play up the "cool" angle, and you want to bring it back to reality without hurting their feelings or being condescending.
Glad to hear you're OCing again too. In terms of raw numbers, I CC more than OC, but I really enjoy the opportunity to talk with folks about it when OCing. There is a lot of ignorance and misinformation these days, and if they don't hear the truth from us, they're not likely to hear it anywhere else.