I think the best thing a scraper can learn about wire is the pros and cons of stripping wire, or selling it as insulated wire. That lesson starts with the amount of wire one thinks they will be scraping. Then being able to determine just what type of wire do they have. Next is learning how to determine percentage of copper for any type of wire. All three important factors for stripping or selling it as is. Regardless of how you decide to process wire, the profit from wire will be better, know your weight, type and return percentage determines best way to deal with wire. Wire can be one the best returns for a scraper, it all depends on how you sell it, as there is at least five different grades at most yards. Lowest grades is cents per pound and highest being dollars per pound, still even in this down market.