When in doubt, throw it out ! Seriously though, the wire can be recycled, but there's not enough in your stash to make a trip to the scrapyard worth the trouble. The highest price you would get would be if you stripped the insulation off, but with such small gauge wire, that would be like sticking needles in your eyes.....LOL
Due to it's relative flexibility, that type of wire is good for flexible connections, like animations and such. So like NAD has said, save the wire and get rid of the wall warts. Maybe your township can help with where to recycle them.
There must be billions of tons of old electronic apparatus in landfills. It's a pity that it has to be that way. Think of all that copper !
