Boss has a late 2011, 15" MBP with a quad-core i7. It's mainly used for typical business stuff, with the occasional short video, but nothing that I would consider high-end. I'm trying to convince him that a new SSD and eight gigs of ram is enough of an upgrade over a new, low-end 13" MBP. Any advice here? Seems a no-brainer to me, but I'm curious as to your opinions. And no, the retina screen on a new MBP is not enough to convince me that this 15" is worth replacing. Thanks!