Your point is valid, but it is still worth noting that a huge audience also did buy their game. They just sold their millionth game on the App Store alone.
http://2dboy.com/2012/01/09/one-million-downloads/
Yes, and the price is dramatically lower as well: $2.99. I paid $19.99 on Steam three years ago. I'd be curious if they could do it all over again today, if they would do iOS first.
