I'll make another argument for 40% halves based off a long term investment. Here's the basis; 40% halves are currently considered inferior to 90% and .999. I believe 40% can consistently be found cheaper than 90% and premium .999 rounds and bars. I'm not going to quote any prices found on feebay because you can find a few sold listings to support just about any perspective. 40% halves consist of 60% copper. The current value of that copper per coin is just under 5 cents per coin. That's right at 1/5th the face value. Not only is the copper value not included in the 40%ers value, but it is considered a negative because of the increased cost to smelt. (I highly doubt it cost an extra 5 cents per coin, but I'm not a smelter) As copper prices increase, I envision a day when people no longer look at the 60% copper as a negative but recognize the added value of the copper. When that day comes, 40%ers will sell at a premium to their silver value rather than a discount.
Most every person you talk to or read about on the various silver forums value 90% over 40%. 40% sell at a small discount but it's usually not enough to intice most of us. So who is it that buys all these 40%ers? We know it's not the average joe stacker. Maybe people or businesses with deeper pockets have already came to the same conclusion.
