I love using their products, but I always get this feeling that they have a lot of planned obsolescence built into them. That or they are just so cutting edge that they push the boundaries of hardware failing. Not sure, but I've spent hundreds of hours trying to debug hardware issues with their devices and there is also a lot of fud on the internet making it more difficult to do that. They never respond to any of these issues on their forums, you always just have to wait until it becomes widespread enough that they will make a service announcement.
I know that these sort of problems are not exclusive to Apple and lots of other companies have issues, I just have not been happy with the way Apple deals with them. That MacBook Pro is the only laptop I have ever owned (besides this Chromebook I'm typing on now) and I am very interested in hardware alternatives. I actually love running Mac OS, but to get away from their expensive hardware that I seem to have horrible luck with and their horrible customer support would be worth dealing without it for me. I admit, though, that I brought a lot of pain onto myself by trying to solve problems rather than just letting Apple deal with it. That's why I'm starting to get the feeling that Apple isn't for a computer hardware geek like me. I want something that is designed to last, that has survived the most brutal quality tests, and that I can maintain myself by replacing the parts. I also admit that I am still tempted to stick with the Mac OS world and get another MBP... I just want more options!!
Also, these days the reasons for upgrading that you mention are diminishing. We all know the limits of Moore's law were being reached, and I was able to upgrade my MBP to 6 GB of memory (Apple's weird limitations on it causing 8 GB not to work?) and put an SSD in it for a solid computing experience sans the other issues.
Of course, I've just noticed that there is an option for a 1TB PCIe drive (compared to the 750GB SATA SSD I have now). If I could double my RAM to 32GB as well then I wouldn't hesitate to upgrade. As it is, I'll still probably end up going for it before too long, unless an alternative presents itself.
Using OSX as a hypervisor to run Ubuntu in VMWare or VirtualBox seemed a waste of resources to me. Installing Linux as the only OS on a MBP doesn't always give optimal results, so no Mac. However MBP 15"'s 16:10 screen and the keyboard without number pad are good things (but Fn Backspace to Del, ugh). It would have been great to fit the ZBook 15 inside my old HP nc8430's case, plus the ZBook removable panel at the bottom. BTW, maybe the new keyboard has a better feeling than the old one but that was good too.
I think you may find this is no longer the case... Linus himself uses a MBP nowadays
Best $190 I've spent in a long time.
Besides the hardware issues, there are many reasons not to buy a Mac. Macs are cool, and I'd like to have one lying around just for fun, but they're pretty expensive toys and I'm not that rich. I can, in general, only justify that kind of expense for a real computer.
for replacing the RAM on a unibody aluminum MacBook Pro? it's one screwdriver (Phillips 00), maybe 10 screws to remove from the edges of the back cover, and the RAM modules are easily accessible without any additional tools. One of the easiest RAM upgrades I've ever done... maybe 10 minutes max.
(not that it matters anymore since the retina models aren't user-upgradeable)
It is nice that there was a temporary respite of upgradability before they decided to go to the furthest extreme possible and make it entirely non-upgradable.