I'll throw in my .02 here ... probably not even worth that

I realize this is a beginner's forum and you're currently looking at a handful of airframes and not much need for more than 4 channels or mixing options - BUT - if you believe you're going to continue in this hobby, and that 2.4 Ghz is the way to go, you might consider a 9 channel radio (Ford or Chevy).

As moondoggie alludes to, this technology seems to be getting the lion's share of R&D from the big boyz and we can likely expect significant new releases over the coming year or two. I'd be shocked if Futaba didn't release a smaller sized receiver to compete with Spectrum sometime soon. Remember, Spectrum has been out for a bit longer than Futaba's system and IMO they are still catching up ...

Anyway, because of my desire for a 9 channel 2.4 GHz radio I'll likely wait for some of the dust to settle - maybe Futaba will come out with a native 2.4 Ghz 9C. There's currently no good option to compete with JR's 2.4 Ghz Radio and I simply don't want to pay "early adopter" pricing for the JR (yeah, I'm frugal!!).

Oh well, something to consider anyway - I'll stop my ramble now.