My working machine is an Asus Q501LA laptop (i5, full hd IPS screen, 128Gb SSD, 8Gb RAM). I would like to switch to a mac. I am doing mainly web development, using Sublime text editor. Do you think a retina 13'' would work for me? I don't think I want to spend the $2000 required by a 15''. I love the full hd resolution on my laptop but I like more the OSX (unix style, will not have to run Linux in a virtual machine). What's your advice: go with 13'', wait until I'm physically ready to spend more money on 15'' or keep the actual laptop? Thank you.