locally? Welding supply stores? Scuba shops? How much are they generally?
$25 for a 5lb is pretty expensive. I get my 20lb filled for less than that at a welding supply store. Welding supply stores will probably be the cheapest source.yeah, beer gas is getting very popular and you can find 5lb tanks all over the place. I bought one new and took it to my local fire and safety store. They fill it up for me with Co2 for about $25.
Ebay is another good source of new tanks. I have found some great deals on people selling used and new tanks in various sizes from 2.5 to 20Lbs.
I own both of my tanks but I exchange them so I can take them anywhere which I have done many times. No inspection fees no lease fees.If you rent a CO2 tank instead of buying it outright you can just exchange the tank every time you need to refill it and you don't have to pay any inspection fees.