I'll echo Mark's sentiment. I have the picture from that meet to prove the statement.

My home field only has me flying Airtronics, but I hardly ever see anyone there and the few I do will not be buying anything to replace their old 72mhz stuff. The other fields I fly at have a few Sd-10Gs floating around. The more people see the radio the more they get interested in it. The change is happening without a doubt.