Not trying to start a debate, but I simply cannot understand the decisions Apple are making. They do not appeal to me, nor help me, in any way, so I'm not paying for them. I just upgraded from a 6 to a 6S (I do not like the 7), and now I've decided that I am going to upgrade my 3-and-a-bit-year MBP to a '15 model (and not the new '16s). My question is this: does anyone have any idea how long the '15s will be available to order online? I.e., does anyone have any previous experience with this? I'd like to put off buying one for as long as possible, but I do want to buy one from the online Apple Store. Also, I can't see whether it would come with El Capitan or Sierra, but unfortunately I presume it's the latter... if I'm wrong lmk. Thanks!