Most likely, although that solves a different pricing aspect. I would guess most of those are the result of automated pricing optimizations to influence your of

Most likely, although that solves a different pricing aspect. I would guess most of those are the result of automated pricing optimizations to influence your offers position among other sellers for the same product. There are services that automatically do this for amazon and other price comparison services. It can also result in a book priced at $23,698,655: http://www.michaeleisen.org/blog/?p=358 http://www.michaeleisen.org/blog/?p=358 :-)