All the machines I have owned have always been 13 inch laptops. Only this year did I upgrade to a 27 inch imac. At first everything was so huge. I started to wonder if it was a mistake. Now that im more used to it, adding a thunderbolt to it would be nice. There is so much lovely space. Its so much easier to multitask and have many windows open without switching. Trying to work on a 13 inch laptop now kinda sucks. 27 may seem large at first but once you get used to it its fantastic. Now im certain that 27 inch was the right choice.