That being said, I have a MacBook Pro as well, and it wouldn't feel right to install macOS on a Dell notebook. Considering the value macOS has for me, and other benefits of MacBooks (build quality, trackpad, possibly screen although I haven't seen the DELL), I feel the price is fair and I don't want to undermine those creating these excellent products – you may even want to consider what today's DELLs would be without Apple. I doubt that we'd have seen retina screens without their lead.
On the Desktop, where I do a lot of work in tensorflow, Apple just doesn't give me a choice. The graphics and CPU options aren't available, and if they were, it'd be almost a 5-digit sticker price. It's probably a net positive for them because it lowers the chances of me leaving Apple to run an illegal copy of macOS.
Note that setting up a hackintosh will probably cost you at least a day the first time, and anything from "it just worked" to another day every time you want to install an update. For a professional with opportunity costs, it's a losing proposition for notebooks. The hackintosh community is also extremely unprofessional, with many tools still on sourceforge, some doing strange things that appeared to me to be attempts to get paid for work incorporating GPL code, documentation being almost exclusively of the walkthrough-type (i. e.: "set uia_exclude=HS12" with no explanation to be found anywhere as to what "uia" or "HS12" are), and the worst user interfaces ever invented by anyone not working for a printer manufacturer.