Back to this old thread again... has anyone tried purchasing a tank recently. I still have my rented tank in the ground, but I don't want to continue with the company I have for another year. I finally found one company that has a tank to sell at about $5K installed. The current company would sell me their tank (15 years old) for about $2700.00. Used to be, not too long ago, that I heard of companies selling their rented tanks that old for under $1K. I'm thinking I'd rather buy a new one at extra cost that and old one for that price. Thoughts??