Base model is the only one worth buying, soon as you go to 10/16/512 you can get a 14" for similar price here with the sales on.
Much better, bit bigger screen
can use multiple monitors
Thing is, I don't need any of that on a MacBook. USB ports are the same, and if I use one, it's a lot (I rarely have anything plugged in to my MBA). I never use an external monitor. I prefer smaller and lighter. But I do need more RAM and storage, and the MBA is cheaper than the 14" at the same config