@Toadgosplat once you have a lot of angels its worth. For instance the first x3 one, if I have 20,000 angels I'm halving my profits to get a x3 bonus, so it works out better. Eventually those first few upgrades become a rop in the bucket, great for getting a quick start.
This is just no where near as fun as the previous games, grinding levels for experience is boring and the skill tree is much less useful this time, especially without a reset skill points. 1/5
 "AdVenture Capitalist")
 "Battle without End")
 "Protector III")