RocketBoom responds to my "what's the business model?" query with an explanation. Here's a tidbit at the end, which tells me that RocketBoom is better positioned than PodTech:

Had we taken venture capital, I think we could of developed this much faster, but we are doing okay skipping that part and the two of us remain in complete control of our company. Perhaps in a few more months, after a few more sales, we will start to roll and eventually have ads running on all days.

Without VCs, they'll be able to grow organically, and hire new staff as they need (and can afford) them. It's not that VCs are useless - it's that they add an additional level of pressure, and contribute to a desire to get big fast.