Good post, I like to learn about stuff like this. It shows the extra collector value of alternative mediums of storage for BTC. In this case most of the extra comes from both the artistic value of the design and the date of the coin. I wonder for how much will the original 1BTC Casascius edition will go in 2020. If there are $10,000 predictions for regular 1 BTC, these coins will go for huge values.