Not as a way to make big money (blogging didn’t do that either). But as a way to share your ideas, to lead your community, to earn trust.
Podcasting is a proven technology that is still in its infancy. It’s an open mic, a chance for people with something to say to find a few people (or perhaps more than a few people) who’d like to hear them say it.
And podcasting is the generous act of showing up, earning trust and authority because you care enough to raise your hand and speak up.