Hi; This is classic 8 or 16 gb of RAM topic. I may have read thousands of posts about this topic but still have no clue which to choose. Disclaimer: Please don't say if you don't know which to choose that means you don't need 16 RAM. Here are strong arguments from both side: - Hey I am pro photographer and doing lots of editing stuff and even for me 8 gb is more than enough. + How come? I have 10 tabs open on Safari and I am experiencing page outs. - Today's SSDs are extremely fast and even if you swap your RAM, you may not notice it. + ***** you. RAM is hundreds of times faster than SSDs. And I am having serious lags when RAM swaps. - You better fire your money up rather than investing never needed slicon. + Retina requires more RAM, your GPU eat them all. - Hey, in 2008, max configuration of mac pro was 4 gb of RAM. Since it runs decently today, you wont need 16 gb for next 3-4 years. + Are you kidding? My biggest regret is buying 8 gb rMBP in 2012, and this year I will upgrade my mac just for the 16 gb of RAM. As far as i can see no matter what people say to go for 8 gb, there are other people who are tried and not happy with 8 gb. For God's sake, can someone please run Safari with 6-7 tabs, iTunes, iPhoto, Pages, Cal, Mail, and Parallels (if you have) and share the results? I cant do it myself in an Apple Store because there is none in my country, Turkey, yet. These are my needs and I want my mac to run at least 3 years smoothly. It seems that I can't conclude by reading posts here and there. Any help is much appreciated. Thanks.