So could there be a wrestling podcast that's theoretically good enough that you'd want to hear it live?

I think doing that lends to being too proximal to timely events, thereby giving your product a built-in expiry date. There are lots of radio shows and podcasts that a) do well at this, and b) make money at this, so it's certainly a venture that could work, but it's never really been my bag to create a thing that has almost no value a week later.