Edgar definitely belongs. As a regular third baseman or first baseman, he actually would have put up even more WAR in his career. The fact that most of his career value came solely from his bat is very impressive. I watched him play a lot of his career and he is easily one of the best hitters I've ever watched. He was always a surefire Hall of Famer to me.
The sales tax will hurt the hobby in a couple ways. It will hurt the margins of people selling cards and also will mean buyers can buy less. Even a 5% sales tax adds up over the course of buying and selling. I don't think it will cripple the hobby, as everything else is affected, too, but it will certainly reduce spending a bit.