Bank Machines in a cashless world

I think that a cashless world is far more likely to happen than a paperless office. What, then, happens to all the poor bank machines when we finally give cash the boot? They'll be sad, obsolete, unemployed, junked. We'll have a glut of clever computers in great big boxes.

Then again, who am I to say that we'll ever have a cashless world? We've been promised that world for years, and it keeps not happening. Who wants to buy a pack of gum on debit? It's a clunky and inefficient thing to do. Loads of cash replacement schemes have failed over the years, and so many people argue that cash is a better way of regulating spending. But, in the event that it does ever happen, I can't help but wonder what will become of the thousands upon thousands of unemployed bank machines.