lol. https://www.youtube.com/watch?v=XRQfrV3NLrIKeep in mind the Galaxy Gear REQUIRES a Samsung smartphone - it won't work with just any Android device, iirc. But if you're talking about just using it for the screen, you might be able to do that with some hardware magic.
iirc, the first generation Galaxy Gear was going for some $60 at Best Buy recently...
Yeah, you do need a Galaxy Gear approved phone to activate the first generation Galaxy Gear before you could root and reflash it; after that, it'd work with any Android device and function pretty much independently. If you're sneaky enough, you could probably do this at the store