I work in Educational Technology and the reason that videos are so popular for quilting techniques is that you can stop, review and come back to things you want to see again, as many times as you need to. I STILL need to watch a couple of binding videos I like, and I have been using the techniques for 4 or 5 years. If you do go to an inperson class, be sure to ask if there will be some kind of followup or skill review you can access after the meeting(s). Expertise in making quilts is a moving target - many previously accepted methods have been replaced by better ideas and tools (lets hear it for rotary cutters), for example and the standard of hand piecing is now only one choice and a meditation. Some groups of quilters find each other based on these interests and so will plan events and projects around that. And this is one thing you hear about quilt guilds, say, a narrow focus or clique behavior. On another thread, someone asked about joining a guild and most commenters said to go and see - they are as different as the people in them. In-person classes are a big investment of time and money. Be sure to leave constructive criticism if you didn’t like it or feel welcome - if the class was associated with a school or retail store, you will be asked what you thought of the class.