RE: How much does 2.4 really help????
Sorry about your club's decision. I just bought a second 72mhz transmitter so I can have more model memories for my stock of receivers.
The claimed advantages for going to the new 2.4 band are that it is largely immune to interference generated within the model and that there are no high-powered commercial uses in that band. Convenience at the flight line, of course, is what attracts most modelers.