The financing firm Greensill puts the total cost for 5G at $2.7 trillion through the end of 2020. The issue is that it’ll take a few years to see any returns, which will put networks in the red until applications catch up. This, of course, is the fine print to 5G that the lights, camera and action of the booths at MWC didn’t portray. In fact, there was a panel where Mike Fries, the CEO of Liberty Global, pointed out that carriers in Europe have not recouped costs on 4G yet. “You’ve had 10 straight years of declining mobile revenues in Europe with the biggest issue being price,’ he said.