It'd be great if the game would automatically adjust whether or not you can buy something depending on the volume. For example, when I press on the 'x10' button, despite not having enough money, it still shows I can buy it, and turns out it meant I could buy 1...
 "AdVenture Capitalist"){kind=icon}
 "Papa's Pancakeria"){kind=icon}
 "Fairway Solitaire"){kind=icon}
 "The Next Floor"){kind=icon}
 "Crush The Castle 2 PP"){kind=icon}