Hi, I'd like to buy a second machine for mobility that's light and cheap. I just saw in a local market a Macbook Air 11" Early 2014 Core I5 DE 1,4 GHz, 4 GB SDRAM, 128 GB that I can afford and would be using mainly to finish my thesis abroad (hence how light I need it to be), which consists of many Hi Res images that I only would open one per one, no retouching or need for Photoshop or heavy image software. I'd also use it for some coding, presentations and general internet thingies such as watching Youtube and Skype calls. Do you think buying a 4 GB RAM little Macbook at the end of 2015 is a good decision? Won't this amount of RAM be obsolete early next year? Or will I be able to use it for what I said above, at least for a couple of years?