ok ... ive been calling around to my local welding stores and they are wanting like 250$ for a 80cf full tank used .... is there a better place to get one? ive finally made up my mind on getting the 251mm instead of the 210 i figure i mineaswell spend the money and get the better one for when i really need it but yea let me know what i should do i looked on ebay and they have them for like 120$ but i dont know anywayz thanks!