Another thing to think about with a radio is how it feels. This is matter of personal preference, but get your hands on each of the radio's you are looking at. If you can't get the exact radio, look at one that is similar in it's shape. Try holding it for about ten minutes to simulate how it would feel through a complete flight with out a neck strap, then try it with a neck strap also. See how it feels as you reach for all the switches and trims. Different radio's have a different feel, and some people prefer the feel of certain radio's over others.

Hogflyer