If you have ever tried flying with a whole bunch of people, having someone step on your video channel/band is very easy to do. Some of the frequency channels are so close together that a powerful signal from a video transmitter can washout (fuss) your video.
The Racing Band is a attempt to space out the frequency so that more people can fly without stepping on each others signals. The only issue with that is that in order to take advantage of the racing band/channels, you will need to buy a new Transmitter (Tx) and Reciever (Rx) and the selection is very limited and somewhat expensive.
So the question is, would you re-buy a Tx and Rx and hope other will do the same thing?
Here is chart of how the channels are layout, notice how even the race band frequencies are layout.