Sometimes I pay $10 for a cup of coffee and a croissant, which are finished in half an hour. I feel that I get $10 of value out of it, and on a similar scale, I would probably get $10 of value out of this game (if I could get it on Android...). I think a big difference is something another commenter said: I don't know that I'm going to get more value out of paying for this game than I would have if I played a different game for free, whereas I know I'm going to enjoy my coffee and croissant.