Yeah is a bit pricey, but would give peace of mind. Guess these guys make their money from the annual fees and everything to do with professional gps tracking seems to be expensive for what it is.
My search for a reasonable price personal location system has shown this. Either the initial unit is expensive or the initial unit is not badly priced, but the annual fees are high. I guess again this relates to the size of our market.
If I find something as I search I'll let you know.