A good multi-tool in general is useful to have. Personally I have a Leatherman Surge, which I use multiple times on a daily basis. Really don't know what I would do without it, and if I didn't already have two of them I would definitely buy this SOG. As far as the value of a tool like this, the Surge retails for $89, and having owned for several years now, I wouldn't hesitate to pay full retail for them... if I wasn't picking them up for $30 apiece.