You were the one who called it "converting". Sharing your hobby with your friends isn't anything weird, encouraging them to try it out neither. I am not telling you that you have to succed, rather, you have no right to complain if you don't even try.>It's way to one sided.
Who knows, maybe some firend of yours will get so hardcore into the stuff that he's gonna surpass you in no-time. It's not that unusual. Also, there always has to be the first one, the pioneer, the volunteer, the giver. Surely, it's somewhat harder than being the taker, but come on, you're a man, if you're going to be passive, who won't?