Don't buy anything!!! Apparently after you purchase something you no longer 'meet the criteria' to receive the daily ads to get free tickets or coins. This is what I understand from the reply I received from support. They claim they can't reset this so it's like you get punished for spending money. I guess they figure maybe we'll keep buying stuff if we can't get the daily, but nope. Bad practice. If I continue playing this game I definitely won't purchase anything else.