"The crucial part of the design is not having to invest, but wanting to. Most people in the Bigpoint universe don't ever pay," says Philip Reisberger. "But if they want to pay, don't just offer hats -- offer them something that will help them."
Reisberger doesn't stop there, though. He goes on to dismiss the retail business model and also chastises Electronic Arts for its decision to avoid giving Battlefield 3 pre-order players a competitive advantage. "It wouldn't ruin the game. If selling an advantage ruins the game, you haven't done the balancing right," he said.