I preordered the new 13'' MacBook Pro with touch bar, 512GB SSD, and 8GB of RAM. However, I am wondering if I should cancel my preorder and get the same machine with 16GB. This would push my order back by 2-3 weeks. I plan on keeping this machine for about 5 years. I will use it primarily for media consumption, web browsing, excel, and other basic things as such. Probably the most intensive thing I would use it for somewhat often is Photoshop. Right now I am sitting at 5.5GB of memory used on my 2010 15'' MacBook Pro with 8GB total. Since I plan on keeping it for 5 years, is it worth the money if I cancel my preorder to get the 16GB and push the delivery date back to future proof myself?