I thnink 16GB is not necessary on *most* devices... unless you do some real heavy computing. For one, OS's have generally become better at memory management over the past... this is why you can even get away with a 4GB System these days... My 2013 Macbook Pro has 8GB... Do I wish it had 16GB? sometimes but it's rare to to max it out RAM wise to a degree which sees it struggle with performance... including working with Photoshop and Final Cut Pro... arguably both can leverage the Graphichs Processor & dedicated graphics adapter ram quite a bit... making these components a lot more important in my opinion. I'd say once you know you actually would benefit from a System running at 16GB of Ram ... you're looking at a rather different computer than an ultra portable by definition. I have yet to see one ultra portable device with a proper dedicated graphics adapter, enough ram on that adapter, highest speed on board RAM, really fast SSD drives (apparently another difference between the basic 4GB Surface GO and the slightly more expensive 8GB model... the first uses "inexpensive" eMMC Flash storage, the latter "proper" SSD type storage... ) ... So at that point we're looking at the higher end models from any manufacturer anyhow. Thus I think 8GB is sort of the sweet spot to strike both a price vs. power and actual real-use usuability for ultra portable devices. I also think with a bit of "future-proofing" (say, 2-4 yr term) I'd say buying a device with only 4GB ram would be what you'd regrett pretty fast.