I do find value in instructional videos, I have found everyone learns differently and retains information differently. I have also found that one on one instruction is invaluable compared to other ways of sharing information. Getting the chance to share that information in a workshop and give guidance along the way, it gives everyone a chance to discover what works for them and an outside view of what you are doing. That's valuable input for everyone.
In one of the classes I have taken over the past few years this is what I was asked, why are you taking this class you really don't need it. I had two answers, one I would never had the opportunity to meet you and two I learn all day everyday and repeating fundamentals is always a great way to fix bad habits that will creep in.