i have paid anywhere from 212.00 to 118.00 for a 64lb bottle....Best thing is if you can find two places to play against each other, start your own price war sort of, at least sometimes this "bad" economy can help you out LOL LOL
I have been buying 64lb mother bottles and filling my own since 1989

I have learned a lot of tricks too and have been getting 52-58lbs out of my 64lb bottles