Yeah, it's the same with any evangelism. It tends to add up, like a faucet dripping a new concept into someone's brain, often taking years. Each evangelist feels like they failed and the last one feels like a miracle worker, but they were actually all successful.
I knew about Bitcoin, from the very beginning, and kept hearing about it and reading about it, but I needed to hear it dozens of times, before I said, Fuck it, I'm buying some.
I'm glad, now, that they didn't give up on me.