You can always just order it with maxed out RAM. With 4 USB-C ports you don't need to replace the internal storage - you can just add more outside the box (like we used to do with our Suns and SCSI Macs - I still have a pile of 3-drive boxes that connected to my SPARCclassic). With that, 64 gigs can probably carry us for a good 3-5 years without too much of a hassle. The fast network option also makes sharing NAS through the office an attractive option.