iOS What next with 600k?

[Martyno]

I'm approaching savings of 600k coins and am wondering what should be my next investment. I already have my red launch tower and level 3 mission control centre so am tossing up between upgrading my town hall from level 6 to 7 or upgrading my runway from level 5 to level 6 (or just adding a level 6 runway alongside my level 5 one).

Any particular thoughts or recommendations?

 

[Bali Hi]

You could upgrade Control Tower and build more hangars so that you can fly more planes.
Or you could add Level 6 runway so that you can land guest Falcons & start collecting Bonsai.
Maybe also build a Laundry to start collecting blankets for Giant flights

Town Hall is a low priority upgrade, I suggest do it when you have already maxed out your population or have nothing else to upgrade