I have to agree. Bid is now $41.00. When the books came out I believe they sold for $65.00 and that was many years ago. I attended a Slydini lecture in 1977 and I was in total awe of the man. I am almost tempted to buy the books, even though I also have a signed set. Maybe someone will wake up and say , Slydini, wow, I am getting them...Someone better grab them..