It may not be wrong. Mouser often has cheaper prices than anywhere else for Arduinos. Arduino Mega2560 for ~39.00 USD: http://www.mouser.com/ProductDetail/Arduino/A000067/?qs=sGAEpiMZZMt0re6d%252b2Rx9v%252bc%252bQEIaOW9
Well, for 39.99 I couldn't resist. Just put one on order - site is showing them on backorder. Hopefully it won't be too long. Thanks for the info guys.