I'll share my experience. I have had one of the original SPOT devices since 2007. It has worked almost flawlessly for me all over Wyoming.
Mine was a gift from those who wanted me to have it. As a friend said, "it provides peace of mind you never knew you were missing". And that is a consideration. Once you start sending out regular OK messages, people back home get a little nervous if you forget it in the truck/at home etc. Peace of mind is addicting.
The biggest tactical plus has been NOT needing to specify my starting point. I simply send an OK message wherever I park. This gives me complete freedom to change my mind about where I want to hike/fish/hunt once I better see what conditions are like. I also send an OK msg when I get back to the vehicle, so folks have an idea when I'll be home. I also have a little system for indicating I got a critter down/will be late for good cause.
Mine was a gift from those who wanted me to have it. As a friend said, "it provides peace of mind you never knew you were missing". And that is a consideration. Once you start sending out regular OK messages, people back home get a little nervous if you forget it in the truck/at home etc. Peace of mind is addicting.
The biggest tactical plus has been NOT needing to specify my starting point. I simply send an OK message wherever I park. This gives me complete freedom to change my mind about where I want to hike/fish/hunt once I better see what conditions are like. I also send an OK msg when I get back to the vehicle, so folks have an idea when I'll be home. I also have a little system for indicating I got a critter down/will be late for good cause.