In case someone is using a forum app like I am and can't see my signature, I have a 2011 iMac and a 2012 MacBook Air, and as the title says, I want to downsize to just one Mac. Part of this is because I feel that maintaining two Macs at this point in time is burdensome and redundant, and also because my iPad has become a (somewhat) sufficient portable work device. My usage is somewhat on the non-taxing side. I do a fair bit of freelance translation and I write a lot, be it for school reports and assignments, work assignments and hobbyist writing. When I had bought my Air, it was at a time when productivity apps for iOS weren't very effective. However, over the past year, with Microsoft releasing Office and other companies releasing usable versions of other productivity apps I use on my Mac, my Air has begun to leave my house less and less. The only times I would bring it out would be if I needed access to websites that only work on Internet Explorer or I need to work with multiple files at the same time, such as running a video clip at the same time I type stuff up, hence the "somewhat" tag. For entertainment, I play World of Warcraft, which I found surprisingly playable on the Air barring the loud fans. I am not a stickler for graphic quality, and I'm mostly a casual player. I was considering on getting a midrange 13-inch rMBP and hooking it up to the iMac for TDM until the day my iMac bites the dust. That way, I can make use of a big,usable screen at home and still be able to haul a full fledged computer with me in case the need arises. Are there any caveats about this I should be aware of? Or do you have any alternative purchasing advice?