Nickelplated45

Hello! A friend of mine is selling a garmin gps v. on the big button on the face it says gps III but when you turn it on it says gps V that is weird but anyway he is selling it for $125.00 with car adapter and computer cable w/usb adapter, I am only going to use it for caching is it worth the price? Is it really a gps V? Oh the map software comes with also.