I think your analogy is a good one. I remember reading the license warning when I was buying the unit, but to be honest I wasn't overly concerned with it since I knew I'd rarely, if ever, use those channels. It's like buying a Viper--"of course I'll never exceed the posted speed limit. No sir. Not me." <img src="/images/graemlins/cool.gif" alt="" />

I'm not familiar with the 5xx. I just have the 110. It's pretty basic but it gets me there and back again. Even it has more features than I'll ever use.