Seems to be pretty much my experience as well. The only time I've used up my memory (16) was when I had several open sketches at one time with fairly large JPGs underlayed while redrawing the AV-36 plans. SW started to 'lose' the JPGs. They were still there, just wouldn't display no matter how long I waited. I also get some poor display (faceted curves/splines) at times, but a real graphics card would take care of that little problem. I've never had an SSD in any of my machines so I don't know if they are really needed. I can say that I've started to use the local hard drive storage more with the larger files. In the past I was just working off the NAS and it would get pretty slow. I've got my automatic backup software set to back up the files every 10 or 20 minutes minutes if there are any changes. That also slows things up for a few seconds when it does it's thing. I've also seen some slowing if I have more than 20 or so individual parts open along with the main assembly, but it isn't memory related. Pretty sure that is slow hard drive? I've been working with this system for several hours per day and the limits of the machine haven't impacted my productivity much.