So I found a new 20lb aluminum CO2 tank on CL for $70, and when I showed up to pick it up the guy weighed 95lbs and was missing several teeth. He sported a grungy mullet, OLD nasty leather jacket, and a half-burnt marlboro, and he fidgeted more than a squirrel with a twig stuck in it's butt. I got the tank for $55. I assume that buys some specific amount of meth because I told him I didn't have $70, and $55 was the first thing out of his mouth. I gladly paid and went on my merry way. Thank God for tweekers... sometimes.