This scenario has to be happening all over the place.
I'm very enthusiastic, but for some reason less convincing than you. I've been talking and blogging about Bitcoin since last April, yet only 4-5 friends actually bought any (these purchases were around April-June last year).
I've explained Bitcoin to a lot more people than that, but they usually just ended up saying "it's too dangerous, the value fluctuates too much" and watching from a far.
At first I talked about it so they could have the same chance I had to invest in Bitcoin at low low prices (anywhere under $100-$1000 is low), but after a while I had to stop pushing it so I don't come off like a pyramid scam artist.