I think the "free to play" model can work for anything, as long as you have a stellar product. If you get people hooked on something that's great, and they love it, they'll be more than willing to pay for it eventually -- even if they have the ability to get it for free. At least that's the way my brain works. I want the creator to get my money, so he can go on to create more of the stuff I love to consume. If everyone could have that mindset, maybe digital theft wouldn't be such a problem.
Problem is, most people create crap and wonder why no one wants to pay for it.
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