I've been with Apple for about 10 years now currently owning an iPhone 6 Plus, an Apple TV and the first gen retina MacBook Pro 15". It's nearing the time to exchange this for a new one, but Apple has kept disappointing me. Even though I generally like the design a lot better on Apple computers (yes, it's important to me), competitors are better looking compared to Apple than they used to. Also, Apple still insist on using huge bezels on their screens for some reason.
Switching to Windows is gonna be hard to do, but when Microsoft has gone in Apple's footsteps of taking control over both hardware and software I think the end products seems pretty amazing. If I only had one Apple-product I would not even think twice about switching. The problem is I love the handover-functions and use either iMessage, FaceTime, AirPlay/AirDrop or regular phone calling once a day.
The problem is I also love the SD slot, HDMI-port and MagSafe, all of which Apple seems to hate lately. I can, of course, carry around a dongle and buy third-party MagSafes, but that is of course more of a hassle.
Switching to Windows is a big thing. It feels like the start of a new era (overstated, but still...) as it probably will free me more from Apple's mighty hand when it comes to choosing a new smartphone and TV box in the future.
I use my MacBook A LOT, but mainly for day-to-day tasks and studying. As I'm gonna start working in the fall I'm probably going to change user habits a bit and hopefully also use my personal computer a bit at work. That's when I fell in love with the possibility of a touch screen with a pen for meetings etc.
Maybe this post is mainly for me to organise my feelings, but I still would love to hear your stories/arguments. Why should or shouldn't I switch?
Honestly, OP - The Surface Book is an incredible device. It really is. You can just do so much with it, it is well built hardware, the screen is awesome, the pen is fantastic (and it has an "eraser" on it, something the Apple Pencil doesn't...oh and it's not sold separately) , it is a better investment dollar-for-dollar than getting a MacBook Pro + iPad Pro + Apple Pencil
Its an incredible machine. As with anything, there is an adjustment period.
For me, the one knock against it is it's price....if ALL you need is a laptop, then the Surface Book is too expensive for that....it really is worth it if you're going to spend 2-3 grand on a Macbook Pro with equivalent specs, plus another grand on an iPad pro with the pencil (In Canada, that's how much it would cost)....then it's worth it because then it's cheaper
But if all you need is a laptop, to type on, to surf the web with, to use office 365 with, etc.....your money will be better spent on a cheaper quality laptop like a Dell XPS, Yoga, or Macbook/Air/Last gen Pro/A few gens old used
Also, CPU's are pretty good these days for what 90% of us use our computers for...you can use a 3rd gen intel core i5 chip and it still performs just as good as skylake or kaby lake does for anything save maybe gaming (modern gaming is way more gpu dependent) or professional audio production, video production (but then you're limited by RAM for audio....) might save a minute or two here or there but my point is processing power is powerful enough that you could own a CPU for close to a decade at this point before you notice any significant (and I mean actually noticeable) performance reduction.
Unless you are a professional, meaning you need every percent of processing power and ram to earn your living, you don't *need* that extra power.
Is the Surface Book a better Pro machine than anything Apple offers right now? Yes. You can do more with it. If you care about macOS to the extent that you couldn't adjust, then that is fair - stick to what your preference is
But if you are capable of adjusting, its a good idea to be open to what else is out there beyond Mac's. Apple's ecosystem is both efficient and wonderfully optimized, but it is also woefully limiting. I would macOS itself has the best computer-multitasking interface to this day (thanks to gestures on trackpad + multiple desktops) but you also handcuff yourself in ways with Apple's products (If you're into gaming, Mac's are pointless or iOS for example is years behind Android in many aspects)
With Windows 10, you'll go back to the days of constant security updates and the ilk, but Windows 10 is also a significantly improved OS over its predecessors... and it's actually better optimized in many ways than macOS is, since it is designed to run with much lower performance parameters than macOS is...think of it like the inverse of the terrible OS that Vista was.
What you need to determine, I think, is whether or not you're able to readjust and go through a period where you have to learn the ins and outs of a new product. This is why Windows die hards and Android die hards themselves are so certain they should stay away from Apple products: they are unable to try something new, for long enough to adjust to it, and see the benefits it brings. iOS is behind the times in a lot of ways, yes - but the current interface with 3D touch is very fast to use. macOS can improve anyone's work flow with gestures and the way apple implements multiple desktops seamlessly.
Vice versa goes for Apple die hards; just look at the iPhone or news sections of this forum and see how many Apple loyalists berate anything positive that an Android phone does or any time a high end Windows laptop is mentioned as a viable alternative
Point is, you're allowed to like what you like - just be open minded and understand if you do switch there's an adjustment period that will take place.
Is the Surface Book worth it, if you can afford it and it fits your budget then yes. But is it right for you? If its not right for your budget, then no its not - get a cheaper Apple laptop instead. But you will have to use a Surface Book regularly (meaning not just for a week) to really see how it would benefit. And you have to be open to the positive aspects of the Surface Book.
Surface Book is something I would have expected the Apple of old to make, not Microsoft. Rather than thinking of it as a "switch" think of it as you're expanding your boundaries.