Want some questions answered. I have a Mid 2012 MacBook Pro that I purchased when it first released. It's been a good laptop and the best computer I've had. However, I also have a Windows computer that is on its last leg (battery no longer holds a charge, cuts off randomly even when on the charger, creaks in the hinge, etc). Since I'm one of those people that has to have a laptop and a backup, I'm looking for a new laptop. Originally I was going to replace my Windows computer with another Windows computer (was looking at the SP3) but my experience with my MacBook has made me want to stick with Apple. So I'm looking at the the MacBook Pro Retina with the i5 processor, 256 GBs, and 8GBs of RAM. I've never seen a MacBook Pro with a Retina Display but I do own an iPad Air and an iPad 2. Should I expect a difference similar to those two or will it be even more significant between the MBPr and the my 2012 MBP? Also, how much of a performance difference will I find in the two laptops as well? I'm happy with my current MacBook Pro but will my mind be blown coming from that model when I haven't even upgraded it?