Amazon's business model could start working essentially overnight if they moved out of land grab mode into monetization mode. Increase the price of Kindle book

Amazon's business model could start working essentially overnight if they moved out of land grab mode into monetization mode. Increase the price of Kindle books by 10% across the board, increase the Prime subscription rate (or tier out Prime levels), and increase their fees for fulfillment and transaction processing. You are correct that their runway lets them operate in perpetual land grab (as well as allowed them to get to the point that they could increase all these prices and not lose all their customers), but that doesn't mean if Wall Street started seriously complaining they wouldn't be able to massively increase profits.