What does Tier 1 hosted storage cost per dataset, and what fails it?

A subsidiary question under Q-0004 (economic cost structure across tiers). Tier 1 — single-copy hosted preservation — appears cheap on the institutional budget line. The question asks how cheap, and what failure modes the cheap line item leaves uninsured.

The answer is C-0050. Hosted Tier 1 prices range from $4-$12K/year for turnkey institutional repositories (LYRASIS DSpaceDirect, Digital Commons), with raw cloud archival at $12-$48 per TB-year. These look like routine departmental software costs — and they are, until the §3 failure modes (platform discontinuation, acquisition, defunding, jurisdictional change, terms-of-service revision) realize. The §5 quantification then applies: a single surfacing event (audit, FCA action, retraction cascade) can exceed a century of repository fees on a single dataset.

The 1:10:100 cost heuristic (M-0004) frames the asymmetry: Tier 1's $1 buys storage without the resilience properties that prevent the $10 and $100 columns from materializing.