What do you base that on? If you are an HN reader there is a good chance that you do some kind of technical work that may push a computer more than a basic user who just does browsing, email, social media, and text-based work. 8GB is enough for those kind of activities, particularly the way people do mostly single-task work. That kind of usage may not justify spending extra for more RAM.

If you are doing development, video work, lots of multitasking and if your productivity per hour is important, then you probably need more RAM.