Hi. I fell in love with my friends' macbook and have decided that I simply must have one. I am torn between two models: MacBook Pro 13 Retina MGX82: i5 2.4, 8Gb ram, 256Gb storage. MacBook Pro 15 Retina MGXA2: i7 2.2, 16Gb ram, 256Gb storage. The macbook will be used for development. I mostly do C++ right now, but I am looking into android development, so this is probably going to change in a near future. The portability is not very important, but still required, every once in a while I spend some time at my parents' and want to take my development machine there. I also have a 24" monitor which, I image, would come very handy to do serious work. I was going to buy 15 inch model next week because of the screen size and the additional 8Gb of memory. Unfortunately, I am a little bit late and the prices just skyrocketed by 30% (!) due to ruble devaluation basically over night. But I managed to request a delivery of 13 inch model for the old price (~1400$). It is a very good price, considering the model costs 1900$ in russian mac store since, well, yesterday or so. (Tell me about it, the apple products are extremely costly in Russia) So, once again, I need to answer the question: is it really worth it to pay more for 15 inch model? One of the local resellers can deliver it for ~2100$. This is really a lot for me and I was on the fence about buying it even when it would have cost me 300$ less.