Right now is a tough time to buy 2.4 because Hitec is just now coming out with their 2.4. 2.4 marketing can be a lot like the razor blade market. Do you remember a few years back when companies were shipping out really nice razors that have replaceable heads? Seems like they shipped the most expensive parts to you free, but when you go to buy 5 blades for 12 dollars, you realize what just happened. It hink of this the way I see the current companies and their 2.4 offering. All of them are proprietary, so you can't make a JR Rx work with a Hitec Tx or a Futaba or Airtronics, etc. Look at the cost of receivers. Do you want to pay $100 every time you put a receiver in something larger than a parkflyer? That is the only option now with Futaba. Wait a couple of months until after Hitec comes out and check prices. They will most likely stabilize and you should be able to make a better decision on whose offerings are going to be least expensive (my money is on Hitec, from 72mHz Experience).
Best of luck,
Curtis
P.S. This Futaba Trade-up program is directly aimed at locking you in to their system before seeing what Hitec's offerings are. The timing is not coincidental.