Well, having a new baby myself, I can hardly be partial. For me, just getting out of the house to do something creative and for myself would be worth the $$$.
That said, I taught myself. I bought a kit with all the goods and just threw myself in. I enjoyed learning my way around by checking out tutes and experiementing when dh had the baby. In that way, it might depend on your personality (do you like to be shown or to figure things out yourself) and whether you're craving a day out meeting fellow crafty folks.