I currently have the Forerunner 450cx and use it for running and cycling but when it comes to longer rides, it doesn't hold a charge. I am thinking about investing in a GPS device that is designed for cycling and would like to know if anyone has the Edge 500 and what you think about it. From what I can tell, it does basically what the Forerunner 405 does but holds a charge longer. The real question is whether the 705 is worth the extra money? Any insights will be appreciated.