Posted By:
nbrazilbarry...just going with what vcp.com has on their site.
To be fair, i didnt report the N's. The PSA 4 population has an N of 7. The SGC had an N of 2. So, the larger the population, the less variance and a more trustworthy point estimate (although 7 is still small). So, the next SGC card sold could be $150...thus making the SGC average shoot way up.