source: Top: BLS producer price index WPU1152, computer storage devices (hard drives and SSDs, quality-adjusted), via FRED, monthly to Sep 2026; Bottom, separate dated points only (no line joins them): Backblaze cost-per-GB post (2017, Nov 2022, US$); Jie's purchase (C$360 / 18TB); eRacks tracker Mar + Aug 2026 (US$); Best Buy Canada listing Nov 12 2026 (C$1,249.99 / 20TB) • transform: Index rebased so Dec 2022 = 100 • drawn 2026-11-12 08:28 UTC