I've been trying to figure out whether I should buy a 2013 rMBP or just keep the 2009 one I have. My current MBP is definitely showing signs of aging. I've basically filled up the hard drive, and the 4GB of RAM just isn't enough anymore. I'm using it mostly as my portable computer when going to campus (I'm a college student studying CS). I have a desktop at my apartment that I've recently built, so I'm mostly using that when I'm home, but I do use my MBP for work (web development) when I'm on campus in between classes and such. If I were to keep my current MBP, I'd probably remove the optical drive and stick in a 250GB or 500GB SSD, add another 4GB of RAM, and get a new battery since I've been getting a "Service Battery" warning for a couple months now. Doing all that would cost about $300-$500 (depending on SSD size and the type of battery I get). A new rMBP is about $1300 with 256 GB storage and 8GB RAM. But the display is also a lot nicer, and the smaller size is definitely a huge plus. What do you guys think? I've been also keeping an eye on the refurbished store, but nothing's caught my interest so far.