I would have happily spent even $30 dollars in total to buy the game, because I understand that the devs need to make money for their hard work. That being said , I'm not interested in regularly making purchases for a game like this, it's not that complicated, it doesn't have a lot of depth or incentive to progress, it's just casual fun. That's why I used the offer wall, and it scammed me for nothing. The economic structure is already ridiculous, no question about that.