When I bought my first 4x5 Anniversary Speed through Ebay, some 5 or 6 years ago, there were a half dozen or so that sold the same day, virtually indistinguishable from one another by description. They varied in sales price from $75 to $450. The passion engendered in a bidding war sometimes makes people a bit crazy. Patience and shopping/prospecting locally seems to be the more fruitful path, at least around a city like Boston.