I am really looking forward to what Apple gives us with the next batch of MacBook Pros! My 15" 2018 MBP has 1 TB SSD and 32 GB RAM and the new M1 machine comes pretty close in speed to that with its 16 GB RAM -- pretty impressive! I really love this little M1 -- definitely an amazing machine with its Apple Silicon chip! (And, yes, although I haven't told her yet -- shhhh! -- my 15" 2018 will more than likely be leaving the household, her place taken by one of the new M1x 16" machines.....). I bought the 13" M1 MBP out of curiosity more than anything else, as I wanted to get an idea of how well these new machines would function in the real world -- my real world. As a second machine, there are some definite functional improvements over the 12" MacBook.
As for a NAS I have thought about that from time to time since at the moment I have three machines -- the two I've mentioned plus my lovely little 12" MacBook that I am still hanging on to as well, in hopeful anticipation of future travel again one day. If I had a NAS I could put my archival files plus my current files, etc., all on there and be able to quickly access any of them quickly on any of my machines, which could come in very handy every now and then. Earlier today I was on another site where we have just started up a new image association game, similar to what we do here at Nikon Cafe, and when looking at the image that was the most recently posted, I remembered that I had an image which would pick up the theme quite nicely.....and had to plug in an external drive and rummage through the archival folders and files until I finally located the image I had in mind. Not a big deal, but it would've been nice if I could have simply checked the files via the NAS and not had to be sure to get the correct external drive that would have the appropriate files on it....
There also have been times when I've been on one machine and something that I wanted was on the other machine and then I had to either wait for it to finish whatever it was doing or fire it up if it were turned off. A NAS would take care of that as well. So, yes, from time to time I do think about looking into that and setting up a system here.