I'm outside Phila Pa & pricing is all over the place. Some vendors supply the tanks & such "free of charge"- but the price of these extras is built into the price of the LP. Others make you purchase or rent the extras, but their pricing on LP is better.

The real question is- what's the quality of the fuel being sold? I've found that the companies that "give everything away" & include these extras in the fuel cost sell less quality LP than those which charge for the extras.