Why in he** did Apple not provide a kensington lock slot?? I was about to purchase one of these macs. I live in a retirement community and need to keep my laptop secure against theft. Why, Apple? If I get one of these laptops and it gets stolen, I'm not buying another one. But Dell really sucks! I'm on my second one (they replaced the 1st one because of all the problems) and now I have problems with the trackpad and keyboard even though I configured it TO WORK!! Not to mention that one time the system didn't recognize the power adapter (happened on the 1st unit, too). But hey, this unit is a BIG improvement on the 1st one. Sorry guys, just bummed... I really wanted a MacBook Pro with Retina display.