do you think my price for a barely USED modded xbox controller is fair?

http://www.amazon.com/gp/offer-listing/B001A9M08U/ref=dp_olp_used?ie=UTF8&condition=used

there it is if not click used then im VIpERS ELECTRONICS>>>>...

anyways do you think 45 dollars is a good price for an assembled 4 mode rapid fire mod with an blue led circle mod? also is this legal>>??