Buying storage is easy. Deciding who will look after it for the next few years is the more revealing part of the purchase.
What are you storing?
Write down your real workload: phone photos, household documents, large video projects or a shared archive. Then ask where you normally use those files. Editing large files at home and retrieving a document while travelling are different jobs.
Measure your current collection and its growth rather than choosing a device from a headline capacity. Keep some room for versions and backups in the calculation.
What a NAS adds to your week
A NAS is a storage system available over a network. Owning one means taking responsibility for updates, accounts, drives and recovery. A mirrored or redundant disk arrangement can help with some drive failures; it does not replace a separate backup.
Ask a concrete question before buying: who notices an alert, understands it and checks that a restore works? Include that person’s time in the cost.
What the cloud moves elsewhere
A cloud service handles much of the underlying hardware, while you still manage account access, sharing and the choice of what to preserve independently. A subscription also needs an exit plan: how would you export your files and continue using them elsewhere?
Compare a few years of costs, including replacement drives for a NAS and the cloud capacity you realistically need. Avoid assuming that today’s promotional price lasts forever.
You can combine the two
Local working files and an independent off-site copy may suit you better than choosing a single winner. The right arrangement is one you can explain, afford and restore from.
Before committing, test a small collection through the complete workflow: save, access, export and recover. That rehearsal is more useful than another feature checklist.