For those who talk about the whole gateway for young people to get into folk I have to ask how many they actually asked. I'm nearly 21, I think that puts me in the today's youth category. Were I not already interested in folk music I highly doubt Seth would get me interested. I'd probably have seen him as a pop singer and not looked to deeply into it. However feel free to do a survey, I for one would find it interesting how many people do find it a gateway into folk.
I have nothing really to add to the main discussion as all my views have been gone over ad infinitum by others already.