I have the same machine as you currently (well, 13", 2013 MBP). I love it, but I’m worried that it’s nearing time for a new one. At work (I posted about it here), I had an Air that I hated. As I consider getting a new machine under $1,500 price tag is way easier to take than the definitely over $2k. I’m hoping 16GB of RAM and that quad-core i7 makes a big difference.