first of all i would buy some VIP lounges at your place, there you got easy money :)
The total distribution is difficult in this game, the cheap places give you more income but only if you are succesfull, the expensive seats gives you better calculate income but you maybe need a bit longer to get your money back. In your case it is hard to tell, because your current ticket prizes are wrong, because areas you selll out for the relativ highest prices are normally more lucrative to build then currently cheap areas.