RAM can no longer be upgraded and most people buy computers expecting to hold on to them for 6-10 years. They configure their purchase for what they WILL need in 6-10 years. They do not buy what is good enough for now but will almost certainly be inadequate later. Do you really expect 8 GB that can’t be updated and with no speed issues now to be just hunky dorie 4-6 years out? I’m certainly don’t and that’s not even taking into account the increased likelihood of SSD failures that will be a consequence of the OS compensating for inadequate RAM by physically assaulting the SSD. That extra $200 for 16GB future proofs my purchase now. It’s insurance against needing to buy a whole new computer in 3-4 years for 4-6 times the cost of an additional 8GB of RAM in the present.