Okay, so you want a 13-inch MacBook Air. But you probably want some more RAM, right? Maybe a storage bump since you’re hopefully going to have this computer for a decade? Okay, well, at that price, you might as well get the 15-inch Air. It’s basically the same price. But you probably want some more RAM, right? And maybe a storage bump?
The sneaky upgrade path is one of Apple’s most ingenious sales tools — and it applies almost across the board, whether the company is steadily…