Its a money grab, but its really a win / win. They teach you how to build basic coils. They upsell you on an RDA, and they sell you all their (ridiculously overpriced) building supplies after the class before you leave the shop. So you get some one on one time, you learn a skill, and you get some lunch, maybe meet a couple people make a friend or two and the shop makes some good money. Win / win. Sounds awesome. I wish there was a class at my local shop when I started. Youtube was pretty good, but a teacher is better.