I need a laptop for a 9th grader who, at least for now, won't be pushing it too hard. Sketchbook Pro is probably the most intense application she uses but who knows what next year will bring? This needs to last through four years of high school. There are 3 possible upgrades, the first being what I consider a no-brainer, 8GB RAM for $100. I'm not sure about upgrading to 256GB storage for $200 - more is certainly better but I'm not sure it's worth the money. (we use iTunes Match so music won't have to clog up the disk) What I'm really not sure about is the processor speed for $150. So it comes down to this - is it better to upgrade storage for $200 or speed for $150?