I am hovering over the button in another window- finally decided to graduate to a 510 after three months with my (still beloved) 901. Really want a manual, but I rather like having a blue or green LED in public since it is so obviously not an analog I am smoking, but I don't want to sacrifice battery life. Does the light make much of a difference? SHould I go with the Joye? Quick, before I lose my spending urge! Just kidding. But, thanks!