You can’t have your cake and eat it, too. It’s a silly old saying with a huge dollop of folk wisdom hidden in the middle of it. But money spent is sometimes more than just money gone – in an integrated world it’s a choice to make one connection when another one might have been a better choice.
Rather than just measure how much money is going in and out, it might be better to understand what we could buy with the same money. The technical term for this is “Opportunity Cost”, or what we give up by making the choices we do.