Posted By:
David SeabornJason-
About three years ago, I had the same idea you just mentioned. I copy and paste the completed items about every 10 days and now have thousands of individaul transactions recorded. This is for EVERY graded card (SGC,PSA, or GAI) from the 19th century to 1915. I also do the same thing for all major auction houses. It takes lots of work, but give me a far more accurate representation of what is going on than do the popular 'guides' (e.g. SCD Catalog's price of $2200 for the 1914 Cracker Jack Mathewson...wha da?) . I've often thought this would be of value to the collecting public. This labor of love has certainly helped me out quite a bit.