Posted By:
Gilbert MainesUnfortunately Jay, I do not usually have the luxury of being able to do things the most reliable way. In this instance I came upon a significant amount of data, evaluated it for apparent accuracy and completeness, and chose to use it for my own purposes (and today - to offer asphaltman some insight that he was seeking).
I have no reason to suspect that the data nor my calculations are incorrect, however, as you point out an 18 month study period may skew the values. But please realize that tabulating every eBay sale of e-cards manually is a sizable undertaking. This was compiled before we had the benefit of the databases of Bobby and Ted.