A very true observation.
Why is that on all movies you see today every notebook that shows up is a macbook?
Does it really correspond to reality?
From my pov, it doesn't correspond to reality. Probably mass advertising.
not "probably", it is basic product placement, if you see a real-world brand displayed clearly in a movie you can be 100% certain that the owner of the brand paid good money for it and they want maximum exposure then (So if Apple buys product placement in movieX you probably won't see their competitors in it, Samsung, Dell, HTC, Sony etc show up in tons of movies aswell but obviously a big marketing heavy company like Apple will get more exposure than many of its smaller competitors) (And ofcourse, Sony movies(Skyfall, Spiderman for example) tend to be flooded with Vaios and Xperias)