I think one company has taken over the trade in business at every store so everywhere has the same trade in price. Getting it pumped at the depot has dropped. I paid the $5 or $10 extra to get tanks with level gauges and I’m not trading those in.
Karl,
Do your hardware/lumber yards/landscape supply retailers not have propane to refill a 20# tank?
There are several here in NH within a 10 mile drive that sell a refill for between $14-16.
Your tank has to be replaced once every 10 years. I have two tanks, so I never run out in the middle of a BBQ with people over.