Saw a stsack of these below the shelf where they had one of teh 509s on display. There was no 511 on the shelf and no price listed. I did not ask because I am not in the market fo ra receiver at this time. I only comment in it because I thiught that this is a new unit. For some reason, I thought Costco would only carry stuff that was either out-dated or, perhaps a factory over-run or some such thing.