I think that has always been that way, that is why I fill the tanks at a propane place. What I have done when needing another tank is walk into a place that does a refill and ask the guy if they have any tanks lying around that are old or failed. I was given a couple free, then I went to an exchange and got re certified tanks.Yup downsizing has been going on for a while. Even the propane exchange company here has stopped 20lb bottles they are now 15lb bottles also raised the price. Same size 20lber just 15lbs in them.