Hence the walled garden and "ecosystem" approach by apple. There are many people that don't want to figure out which phone/tablet/laptop is good and bad. They know if they buy an Apple product it will be good. They don't sell junk. Sure it's overpriced if you compare specs to Android phone/tablet or Windows laptop but you also don't need to do hours of research to see if the product you are looking to get sucks.
This. It's not about being l33t or a hipster or any of the other patronizing bull so often tossed about here on Slashdot.
I bought my first iPhone because (at the time) the app that finally caused me to pull the trigger and move up to a smart phone was only available on the iPhone. I've replaced it every two years since (buying one version back on sale when the new version comes out) and plan on continuing to do so for the forseeable future. Why? Because it Just Bloody Works. I come home, plug my new phone into my (Windows) computer, open iTunes, and with a few clicks my new phone is identical to my old phone. In, out, and done.
My experience in buying my Android tablet just confirmed that this was the way to keep going. Didn't want an iPad, because they were too expensive for modest needs... and trawling through dozens of models and hundreds of reviews trying to discern the truth ended up being a massive PITA.