You get exactly what you expect and want from the cup of coffee. Apps, not so much.
What happens when you get caught up talking to someone or distracted, and your $4 cup of coffee becomes cold and undrinkable? Or if someone nudges you and you spill some? Does the $ value ever factor into it, or is it just a 'throwaway' cost?
In fact, does anyone ever stand at a urinal and think to themselves - "That is a $10 pee, given the coffees I bought this morning"?