You should start a podcast. Why? Because your competitors are starting to do it, and frankly… it’s pretty easy and fun to do. There’s no excuses really.
Look around… Are you going to be the person who waited to do it and be behind the curve a year from now, or will you be the visionary in your industry? The team that “was doing it way before everyone else”. If you don’t believe that audio/video is going to be a HUGE part of the future of th web… well then, don’t start one. You get what I’m saying I hope!
Come back here after starting one, in 6 months, and tell me I was wrong, and I’ll give you $50. Deal?