I understand how you feel. At the scrapbook convention I attended a couple of weeks ago, I had the same experience with 2 of my classes. One class--a tag class--I was so excited about. We were to learn how to make all different kinds of tags and would leave the class with 8 tags finished. Well that class ended up being just a put a sticker on cardstock and cut around it in the shape of a tag. I think the only thing extra was to tie a ribbon around the bottom of the "tag". A complete waste of the $18 I paid! I thought I really would learn some new and innovative ideas for making tags. Wrong!
The other class I was really disappointed in was an "organization class". I don't mean any offense to any CMC's here, but this class could have taken place at the CM booth. I paid $10 for this class, and I almost got up and walked out, I was that upset. The organization ideas were merely given as a sales pitch for the CM products--no other storage or organization ideas were offered. I'm not against the CM products. I bought the wavy cutter and almost bought the oval cutting system too. But that was after a demo at their booth at which they were also giving demos of their organizational products. The class was not described either online or in the program anywhere as being a CM class. I would not have taken it had it been so. I felt like I could get the same info at the booth for free. I left the class with no new ideas for organization apart from those given for purchasing their product. We were also encouraged to buy up to a certain amount in order for someone in the class to win a prize.
I hope I haven't upset any CMC's or anyone else for that matter, but I think we should have been told ahead of time what this class would be about.
I'm still thinking I should contact the people who put this convention on and let them know, but I'm still upset about it, and I probably shouldn't talk when I'm upset. I guess you can tell from this post how I feel.