Even if you don't use it, I think anybody that is interested in being outside could find a use for it. So far I have rigged it to the strap on my backpack, attached it to the handlebars of a mountain bike (duct tape of course), attached it to my fishing vest, and used it to help my dad survey a fence line.
As long as it has a clear view of the sky it is pretty accurate, I have seen it as low as 4 feet. The biggest drawback to it is that it doesn't have a map, and you need the software and the serial cable to program waypoints into it. I think the bare bones Mapsource software can be downloaded from garmin for free. That gives you highways and cities plus a few things. The detailed stuff is fairly expensive, around $100, but I found mine (the entire US topo series) on ebay for $40.