People are constantly forecasting the demise of physical cash payments – but that prediction has been around for a long time. In this segment of The Motley Fool's financials-focused show, Where the Money Is, banking analysts Matt Koppenheffer and David Hanson look at how much market share companies like American Express (NYSE:AXP) still have to gain.

David Hanson owns shares of American Express. Matt Koppenheffer has no position in any stocks mentioned. The Motley Fool recommends American Express. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.