I just noticed that the price of GTA V ($60) can be less, than the price of the SSD space it takes up. GTA V takes 65 GB of disk space. Upgrading from 128GB to 256GB costs $200 with both MacBooks and MacBook Airs, and no other component is upgraded. That's $100 / 64 GB. So the total is $160, and the SSD is the majority of it.