Free: a Tactic, not a Business Model

Accepting credit cards: a Tactic, not a Business Model

Obviously "free" is not a complete business model, but how blind do you have to be to keep repeating these silly anti-free arguments despite the overwhelming success of many businesses based of free things? (Google, television, etc)

If you can build a product that will get a lot of users and has low per-user costs, then free is an excellent option and almost inevitable (because you will face competition from free). On the other hand, if your product has limited appeal or high costs, then you probably need to charge.