Bullion has always been the first product to be sold for Bitcoin. I remember TraderSteve here selling me my first silver coin for BTC back in 2011. I also had a storefront shortly thereafter that sold silver coins for Bitcoin. I remember in December of 2011 I went on a trip and had 10 orders for silver come through. I was terrified I wouldn’t be able to sell the 250 BTC before the price went down and I lost money on the sales. Seems like a ridiculous concern looking back.