ok, i see a lot of digital radios being used out there , now for me my little cheap redcat radio works fine . (stop,go turn left ,turn right) now never owning a digital radio ,im sure i don't know what im missing, a friend told me that once you go digital you never go back....lol , so is there really a big diffrence? and what are some of the things those little #s and lights.. etc can tell me?