price-trends README: links callout below Files, add a buyer takeaway at the end

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Monthly median price-per-terabyte for current 8TB+ NAS hard drives (US, new, in stock), from Jul 2024 to the latest month, split into the two tiers people choose between: consumer NAS (WD Red / IronWolf class) and enterprise (Exos / MG / Ultrastar). Monthly median price-per-terabyte for current 8TB+ NAS hard drives (US, new, in stock), from Jul 2024 to the latest month, split into the two tiers people choose between: consumer NAS (WD Red / IronWolf class) and enterprise (Exos / MG / Ultrastar).
> **Interactive version** (hover, zoom, and a capacity-matched cheapest-per-TB table): **[nasdisks.com/articles/nas-drive-price-crunch](https://www.nasdisks.com/articles/nas-drive-price-crunch/)**
>
> Part of the open [NAS drive dataset](https://github.com/deeddy/nas-drive-data), maintained at **[nasdisks.com](https://www.nasdisks.com/)**.
The chart below tracks both tiers from Jul 2024 to the latest month. Prices held flat around $20 per terabyte for over a year, then climbed sharply from late 2025 to roughly double, and have stayed there since. Consumer NAS and enterprise drives moved almost in lockstep the whole way. The chart below tracks both tiers from Jul 2024 to the latest month. Prices held flat around $20 per terabyte for over a year, then climbed sharply from late 2025 to roughly double, and have stayed there since. Consumer NAS and enterprise drives moved almost in lockstep the whole way.
![Median dollars per TB, consumer NAS vs enterprise](nas-price-trend.png) ![Median dollars per TB, consumer NAS vs enterprise](nas-price-trend.png)
@ -18,6 +14,10 @@ Median price-per-TB sat flat around $20/TB through 2024 and most of 2025, then r
- [`monthly-median-per-tb.csv`](monthly-median-per-tb.csv) - columns: `month`, `consumer_usd_per_tb`, `enterprise_usd_per_tb`. Computed monthly medians only. - [`monthly-median-per-tb.csv`](monthly-median-per-tb.csv) - columns: `month`, `consumer_usd_per_tb`, `enterprise_usd_per_tb`. Computed monthly medians only.
> **Interactive version** (hover, zoom, and a capacity-matched cheapest-per-TB table): **[nasdisks.com/articles/nas-drive-price-crunch](https://www.nasdisks.com/articles/nas-drive-price-crunch/)**
>
> Part of the open [NAS drive dataset](https://github.com/deeddy/nas-drive-data), maintained at **[nasdisks.com](https://www.nasdisks.com/)**.
## Method ## Method
For each month, take each drive's average price-per-TB across its logged days, then the median of those per-drive values across drives (so a model with more logged days doesn't skew the month). Scope: 8TB and up, US, new in-stock prices, compiled from Amazon price history. CMR/SMR and specs from datasheets. For each month, take each drive's average price-per-TB across its logged days, then the median of those per-drive values across drives (so a model with more logged days doesn't skew the month). Scope: 8TB and up, US, new in-stock prices, compiled from Amazon price history. CMR/SMR and specs from datasheets.
@ -26,6 +26,6 @@ For each month, take each drive's average price-per-TB across its logged days, t
This folder publishes the computed monthly medians only, not the underlying per-drive price observations. This folder publishes the computed monthly medians only, not the underlying per-drive price observations.
## Interactive version ## Takeaway for buyers
The live, interactive version - hover, zoom, and a capacity-matched cheapest-per-TB table - is at [nasdisks.com/articles/nas-drive-price-crunch](https://www.nasdisks.com/articles/nas-drive-price-crunch/). Because the two tiers track each other, there's no reliable price-per-TB win from picking enterprise over consumer among new drives. Buy on price-per-TB and CMR vs SMR, not on tier. The one genuine discount is the recertified/refurbished enterprise market, which sits well below new prices but comes with shorter reseller warranties and prior drive hours, so it isn't included here. And since these are supply-driven prices, they are unlikely to snap back to 2024 levels soon; plan around the current floor rather than waiting for a rollback.