Sven is the other person, right?
No Jin, I won't back out of the tank, I can really use a 2nd one, been dragging that tank up and down each time I keg or rack. And Aluminum makes it even more perfect. That's a great score, man!
I had mine filled yesterday and it ran me $27.50 this time for 20# (paid $21 before). It's the only place in my "area" that fills, unless I drive out to Laurel Bottled Gas and deal with the soup nazi.
But I found out when I was waiting, they do Hydro testing right in the shop, and mine is due for that on the next refill. $23.50 for the procedure, that's pretty decent. Since my bottle looks brand new, I may just do that.
Now that hydro test won't be until April or May or so. 20# lasts a long time... if there are no leaks. I had an MFL from the manifold that wasn't tight enough and loosened up, killing a lot of it. So gents... Double check all your couplings before you turn your back and start drinking beer.
I keep looking for deals on CL we can benefit from (like you finding 4 CO2 bottles) but the offerings are damn sparse. One of my Prog friends said he's getting out of brewing, but he's still too attached to his equipment, which includes a lot of nice stuff. I'll work on him this weekend.