New Slogan: "All Your Cards. One Coin. One Super Bad Idea®." In CA, almost all purchases over $100 require you to show your actual card making the One Coin instantly obsolete. "Look daddy! I bought a One Coin Card for $50 and now I get to carry my One Coin AND my credit cards, Isn't that great?" In addition to this idea already being obsolete, most technologies are going toward payment through your smartphone (which has been common practice in Japan since 2006).