Just in case I missed the functionality, I think hotkeys for the spells would be handy. That way if you are like me and burn something like God's Hand and then furiously click, you don't lose time between activating the spell and getting back on the chest. Very tiny amount of time, I know, but every little bit counts.
The last upgrade is cool and all, but for the price ($8 octovigintillion), a paltry 3.1415926 multiplier to earnings is negligible at best, especially when going from 1700 to 1800 newspapers costs 914.517 octovigintillion.
Not sure how I feel about the Angel Investor upgrades (the ones that cost Angels). I think I would be more inclined to purchase them if the upgrades were permanent.
 "Hero Simulator"){kind=icon}
 "Real Estate Mogul"){kind=icon}
 "Realm Grinder"){kind=icon}
 "Planet Splitters"){kind=icon}
 "AdVenture Capitalist"){kind=icon}
 "Hawkeye Gamer"){kind=icon}
 "Diamond Maze"){kind=icon}
You WOULD! I wanted to introduce the first difficult choice into AdCap. Let us know if you don't like it though!