Just found a Hampton GCI60 at a reputable chain hardware store. Its a October 2011 production run and still in its crate. SN 384 245542 Does anyone know if any changes have been made to the model since then? (Improvements, redesigns etc) I know its a good stove but I'm a little concerned about buying one made over 1.5 yrs ago... Price is $2000 plus tax Thoughts? Thanks!!