Search under nickels, copper, copper or nickel investing, etc... It does make a good deal of sense.
Hedge Fund Manager Kyle Bass also talks about this allot. He bought $1M worth himself and tells the story in Michael Lewis' book BOOMERANG.
Just as has happened to the rest of the coinage, it is highly probable the US gov't will change the metallic content in nickels (less copper)sooner rather than later as copper becomes more expensive. Dr. Stephen Leeb also makes a great case for copper's growing scarcity. I recommend Dr. Leeb's book RED ALERT for more on that subject as well.
Both of these gentleman have several podcast and You Tube interviews you can check out for free or simply visit your local library or bookstore and peruse stheir thoughts.
Hope that helps.
JG

I've heard/read other places that nickles are now worth more for their base metal content than what is reflected in their face value. James Wesley Rawles writes here that inflation will exagerate this disparity and therefore hoarding nickles might be financially worhtwhile.
Anybody thought of or considering this?