I am not sure what you are looking to pay for the Dreamcast Jet Set Radio, but NCSX has the game in stock for $33 new. I bought my copy there a few months ago. www.ncsx.com
That cover is the Dreamcast Direct version. AKA De La Jet Set Radio. Basically it is the Japanese release of the US version(including the new levels and some new tunes). Definitely better than the original Japanese release of the game.