NVME basically offers you higher max transfer which helps when working/and or moving huge files.
Ever heard of RAID??? It is frequently less expensive to use two or three inexpensive SATA SSDs in RAID 0 to achieve transfer rates comparable to the very expensive NVME drives. Most motherboards only have one M.2 slot, so you can't RAID the NVME M.2s. Older motherboards that lack an M.2 slot can still support SATA RAID setups.