One of the most notable companies that create and sell trading cards is Topps, which was created in 1938. They have physical cards, but also apps that you can collect virtual cards, some free and some for a price. Checking things out on eBay, I was impressed to find several different Avalanche cards that are available. 2013-14 Ultimate Collection Nathan MacKinnon Rookie Auto 29/99 Jersey #1/1 BGS 9Cost: $30kYou read that number correctly. 2013-14 Ultimate Collection Nathan MacKinnon Rookie Patch Auto /25 Top PatchCost: $5,999.99This MacKinnon card is pretty cool.