Ahh... thanks. I missed the rebuilt ones when I looked the first time. One at a time isn't so great once you add shipping, but three or four for slightly more shipping would be a darn good deal for a new keg'er. They even replace the poppets and relief valve.
I'm holding out for a while before adding any more to my collection. I hear that Pepsi is phasing their cornies out for some bag-in-a-box thing. I'm betting they'll be going for a dime a dozen when all those left-overs flood the market.