You selected some fine masters! You Tube has really transformed the way people are learning music. I just threw away dozens of old guitar tutorial DVDs and probably 50 CD ROM tutorials that were included with my old guitar magazine subscriptions. There were a lot of great lessons discarded, but they were taking up space, and YouTube is superior. I'm older and learned songs by "picking up the needle" on vinyl albums. Eventually I purchased a Tascam Guitar Trainer so I could slow passages down to learn them, but I think people can access that technology free now as well, if they even want to bother taking the time to learn songs by ear. Times they are a changing, but the music provides a constant flow of the good stuff music lovers crave!
Thanks for sharing!