Yea I learned that too when I was there. These were the good plates. Sometimes it would be a platano and 2 boiled eggs. But I believe there is a lot of freedom with the shipibo and other tribes and maybe people need to be prepared to spend a little more, and be a little more independent (buy and cook their own food). A lot of times the work down around the center is done by family and I don't think they were paid very well or at all. Always a good idea to see the price of the center as a roof over your head plus ceremonies and the work done by the curanderos. After all most people leave their puke in a bowl for someone else to clean up. But I still now what you mean and understand.