Greetings! I have a little bit of a dilemma. I Currently own a decent little machine. Its a 2015 Macbook Pro Retina 13" model Identifier 12,1. Long story short due to a massive issue with a used Macbook Pro 9,2 i bought i got it as a free replacement for that 9,2. Issue is i dont fully like it. My Dream Machine is a 2012 Macbook Pro 15" with the 2.6Ghz Intel i7 and that 1Gb Geforce 650M. I dont like the fact the retina has no dvd drive, no ability to run Windows 7 via bootcamp, no power, or battery LED's no iGPU, and no kensington lock. The biggest issue i have is that there is NO upgrabability. So what im asking is if i where to get that 2012 Macbook pro 15" with the 2.6Ghz i7, and that Geforce 650M 1Gb what advantages and or disadvantages am i getting over this Retina macbook pro which i wish to sell. MIne has 8gb Ram and a 1Tb SSD in it. Suggestions Please?