What does "digital proportional" mean in reference to radios. Also, in looking at auctions of OLDER (this model is discontinued according to the Futaba website) 4 channel radios on ebay (for example the Futaba Conquest 4NBF), I have noticed them going for around the 100.00 range and this does not include shipping. Just an older (outdated?) radio new in box complete set. But you can get a BRAND SPANKING NEW modern Futaba 4 channel for around 130.00! Now why would someone pay almost as much for a 10-15 year old model that will be difficult locating parts for when they could get the newer one for not much more. Am I missing something here? Just trying to figure this radio thing out...there are so many choices and so many different models to choose from. I've read lots of posts on beginning radios and have about decided I just need your basic good quality 4 or 5 channel model for the best price I can get.

auto5man