Bottom line is, it would be nice to have a reliable way to quickly swap the RX from one plane to another.
Although that would really cut into the number of receivers we would have to buy, and that would not be something that the manufactures really would want to see.
I have a dozen various receivers now (of course they are all 72 Mhz such dated technology as compared to the new 2.4 Ghz units) and for the most part I only use four out of the six or seven channels that I could use on most of them, so just swapping wire is not all that big of a deal for me. I do have a couple of planes where I am going to need even more channels than that so perhaps that will justify getting a not only an upgrade as far as channels, but also going into the 2.4 Ghz setup as well. Another thing I have found that would be nice for our receivers is an optional external antenna for airframes that are composed of carbon fiber or other materials which shield rf signals.
But it would be nicer still if they made a system that you literally just plugged the radio in like a compact flash card for you camera.
I have seen some of the radios where the memory for different airplanes are in a module that can be swapped out giving you a lot more flexibility with the amount of planes you can store in memory, but better yet would be a system that the rx was interchangeable between airframes as easily. I am really thinking about the pigtail and header system for some of the planes that will need more than 4-5 channels to do just this in the near future. The TX I have seen with more than 7 channels are expensive an while I have not really looked into it as yet I would imagine that the Rx as fairly pricey as well, not to mention to upgrade all of my planes to 2.4 would be expensive it would be nice to have the option of swapping out the radio easily between planes as I go through the change over to the new system without having to go out and buy a lot of new RXs....