Yeah, Gavin was a guest on EconTalk podcast back in 2011, when bitcoins were still $1. I listened to him talk a few minutes and said "Whatever that guy is doing I'm investing in" even though I didn't really understand Bitcoin until much later...
I still think it's no coincidence that Gavin is spearheading Bitcoin- He is impressive because he's very down-to-earth but still supernaturally smart. I'm not sure Bitcoin would have gone anywhere without him.