Apple's history of limiting screen size options for lower cost/performance computers has always annoyed the hell out of me. Needing a larger display and form factor portable is an ergonomics issue not a performance or profit margin issue. They can charge a premium for a larger display of course but coupling it only with other high cost options makes it inaccessible to people. This is a case where Apple's pursuit of high profit margins truly does hurt users causing physical pain, discomfort and maybe even injuries. Most people I see using 13.3 displays are often hunched over squinting at them.