I'm considering getting the Nike GPS watch. Before everyone blasts me about how much better Garmin is, let me explain my situation. I have Nike store credit so I would get a significant discount, it is cheaper than most GPS watches ($150), and let's face it, it looks cool. I like the Nike Plus website functionality and it seems pretty accurate. All I want to know: is it reliable and durable? The usb port on the watch scares me a bit because sweat could get in there... but can I have some advice on the Nike watch? I don't need people pushing a Garmin or any other watch, I just want people that have experienced the Nike watch.