I too own my tank so I could shop around but I have an excellent supplier who has always given great service. Some of the others may occasionally be a couple Pennie’s cheaper but I’ll go with the great service. A few years back, I and many others, got caught up in an unscrupulous suppliers trap. Out of sight prices and because I had their tank, I had no option. Add to that, the service was terrible. Their own drivers were helping customers get set up with other suppliers. I think they were bankrupt and this was their last push to get money. Of course that company is long gone today. They were once the primary provider in the area.