Well, I don't actually see the point in developing something like that. If you're willing to make money on the internet, what about building an online store? For me, that's less complicated and the chances of you profiting are way higher. Especially if you use magento and extensions like matrix rates and rich snippets, so I think it makes more sense.

I just think because it's relaxing, and it has a kind message. Something that people really need nowadays, unlike all the shooters and violent games.