ORIGINAL: harryangus
I was thinking about buying another 72Mhz for my second plane, and someone mentioned phasing out to me.
I was thinking about a 2.4 Futaba 7C for my second plane, but money is scarce lately so I guess a 4 channels 72 Mhz will be my choice.
You can buy a 4 channel 2.4 system for less than $100. You can step up to a 6 channel system for under $200. Once you get above 6 channels, the price starts going up significantly.