HI @Stoddy, I am merely the volunteer who comes here to help answer questions. I don't know why they decreased the number of gold bars in the piggy bank but I know that a lot of players were very upset about this. It was going through a testing for a while to see if the players would continue to purchase it. King monitors everything that happens on the games and I was hoping that the players would stop purchasing it and then the test would fail. I think it might now be out of testing so I guess enough players continued to purchase the 30 gold bars for the same price, according to the data that they collected.