I'm simply not going to buy a closed system. I'll keep my current (Late 2011 15") MacBook Pro running as long as I can but I've already taken delivery on a BTO Windows notebook that I expect that I will migrate everything to in the next couple of years. It's just that I've so much invested in Mac utilities and software - although I'm finding much of it available on the Windows side, too.
Doesn't mean that I won't buy another Mac in the future - but I'll likely be staying away from the MacBook Pro series. If you're looking for a user-friendly MSBP, you may want to look at some of the refurbished 2012 non-Retina's. At least you can install your own SSD and RAM...
Clinton