While sitting in the audience at Zuora's recent Subscribed event, I couldn't help contemplate the meaning and progress of what was once a set of words that didn't roll off the tongue. I am talking about the "subscription economy" -- and it's really something. The data coming in from a variety of sources shows how rapidly subscriptions have become a big part of our lives, and why not? As I am fond of saying, subscriptions have become the way to commoditize technology and other things so that they can spread to the largest markets possible.