SSDs have become the default for boot drives, but hard drives haven’t disappeared — a few genuine use cases still favor spinning platters over flash storage on cost grounds.
Why SSDs Won for Most Use Cases
- Dramatically faster random read/write — the difference most users actually feel day to day
- No moving parts — more resistant to physical shock, silent operation
- Lower power draw, contributing to better laptop battery life
Where HDDs Still Genuinely Make Sense
- Bulk cold storage — media libraries, backups, archives where sequential read speed matters more than random access, and cost per terabyte matters most
- NAS arrays with redundancy — spreading capacity across multiple large, inexpensive HDDs in RAID/ZFS is still meaningfully cheaper per usable terabyte than an equivalent all-SSD array
- Extremely budget-constrained builds where raw capacity matters more than speed
As of current market pricing, HDDs typically cost roughly 3-5x LESS per terabyte than SSDs at the high-capacity end (8TB+) - a genuinely meaningful difference for large-capacity bulk storage needs specifically.
A common, sensible modern setup: SSD for the OS and active applications, HDD (or a NAS with HDDs) for bulk storage and backups — capturing SSD speed where it’s actually felt daily, HDD economics where raw capacity is what matters most.