It’s not just the marketing - it’s that if you buy all of your tech from Apple you have 1) top-quartile product quality and 2) remarkable little upkeep to do compared to compiling a collection of multiple brands.
I have an Apple Watch, it unlocks my laptop automatically. My AirPods connect seamlessly to my phone for listening to music, my watch when I'm working out and my laptop when I'm doing video calls at work. Continuity, AirDrop, AirPlay ... you can't deny that Apple has built an impressive ecosystem.
Damn Watch really unlocks macbook? I already sold mine (didn’t have a MacBook at the time) but I’ll consider purchasing one again, haha. Edit: shit, just realized how easy it is to fall into Apple’s trap.