Is a SATA SSD still worth buying in 2024?

Only in specific cases. Mainstream reviewers and specialist subreddit consensus is that 2.5" SATA SSDs make sense for older laptops and desktops without M.2 slots, secondary bulk storage, or NAS use. For any modern build with an M.2 slot, an NVMe drive typically costs about the same per gigabyte and is dramatically faster.