Although it might sound like a lot, it's actually a very cost effective investment when your poached whale ends up spending $10K in the game. In fact, the top grossing companies are willing to spend more than $500 CPI for these kinds of super whales. They make a huge difference between a game company that is struggling to survive and a mega profitable company. Whales are “rare” users that every game company is after whales are the users that are able to spend hundreds, thousands, and even millions of USD in a game. These special users sure make a whale of a difference in an app’s success and profit. In most top grossing games, the whales represent the smallest percentage of users but are responsible for up to 50% or more in revenue sales of an app.