As Roy alluded to FF #48 was a warehouse find. And it wasn't just a few thousand copies either. Long time Maryland dealer Gene Carpenter has recounted to me setting stacks out on his table from unopened cases at .50 apiece (along with Iron Man #1's) in the mid 1970's. He bought them at .10 apiece and was thrilled to make a 5 bagger on his money. There is no doubt he wasn't the only one. The fact that the market has expanded exponentially enough to absorb all of these copies and support current price levels is amazing. FF #49 and #50 were not overstock books. Even with abundant supply in all grades, even very high grade, there is tremendous demand for #48. Were it not for that, FF 48's price would be much farther ahead of #49 and #50 than it already is.