Personally I'm not fond of Podcasts … I find them annoying. I'd hate listening them driving to work / back home in traffic, where only (good) music saves my nerves.
I cannot put down a note or a link of something quoted, because I am moving and doing something else the few times I have tried to listen something…
Third a radio speaker has an appealing voice or tone while talking … are we sure our voice is equally pleasant? I, for example, hate my voice the times I listen it in some family or friend's video.

So just write, I can enjoy it … if you go podcast, I'll miss it!