The 2GB Raspberry Pi 5 jumps to $77.50 today, a $12.50 rise that breaks the cheap math of running an always-on box at home [1]. Raspberry Pi’s own advice to buyers is to weigh older kit — a 3B, 3A+ or 3B+ — as the cheaper upgrade. In the same week, the storage index that ranks drives by cost per terabyte put tape on top, at $4.56 a terabyte [1][3].

The big picture:

Self-hosting used to mean trading your time to skip monthly cloud rent. That trade assumed the hardware was a cheap, fixed cost, already bought, slowly losing value.

Now the price of that hardware is set somewhere else. TrendForce expects DRAM (the working memory chips) contract prices to climb 10% to 15% this quarter. It expects NAND (the flash memory inside drives) to climb 15% to 20% [2]. Its reason is the same on both sides: suppliers are routing advanced capacity to server parts, and the consumer side is left on “production cuts” [2].

What strikes me is how directly that lands on the hobby. A 2GB board is not a server part. It is the cheapest way to own an always-on box, and it just got 19% dearer, from $65 to $77.50 [1].

There is a second signal in the same week, and it points the same way. The Disk Prices index, which ranks drives by cost per terabyte, put its cheapest line at $4.56 — on tape, a medium most home labs never touched [3]. The cheapest hard disk on the same listing was $23.57 a terabyte, and the cheapest flash drive was $85.00 [3].

By the numbers

  • $12.50 — Pi 5 2GB increase: the board reached $77.50 on October 1 and the 2GB Pi 4 reached $67.50. In April the company could still hold those two boards down; this time it said that had “now become unsustainable” [1].
  • 10% to 15% and 15% to 20% — memory contracts: TrendForce’s forecast for DRAM and NAND contract prices in the fourth quarter of 2026 [2].
  • $4.56 versus $23.57 — cost per terabyte: the cheapest tape against the cheapest hard disk on the same October 3 listing. That gap is 5.17 times, before any drive is bought [3].
  • $85.00 — flash per terabyte: the cheapest flash drive rate on that listing, 3.6 times the cheapest disk. Flash is the wrong place to keep an archive [3].

What I’d watch:

I keep circling the fact that the only way to save money right now is to buy older technology. Both markets arrived there separately.

  • The vendor’s own downgrade: Raspberry Pi tells buyers to check they are “not paying for headroom you don’t need” [1]. It points them at a 3B, 3A+ or 3B+ at lower cost. When the seller points at last year’s model, the price is doing the talking.
  • The 18-terabyte sum: at the cheapest disk rate, 18TB costs about $424. The same capacity in LTO (Linear Tape-Open) cartridges costs $82, because a 20-pack runs $1,640 [3]. That $342 gap is what sends people to eBay for used tape drives.
  • The used tier is doing the work: a used 18TB enterprise drive sat at $23.89 a terabyte, against $23.57 for the cheapest new 14TB unit [3]. The second-hand market is no longer the bargain bin. It is the market.
  • The supply side is not loosening: enterprise flash demand is expected to grow more than 80% this year [2]. It is the only memory category whose price growth speeds up this quarter. That is where the capacity is going.
  • The promise to reverse: Raspberry Pi says it will undo the increases when memory prices subside [1]. I would watch whether that survives a second year of tight supply.

The catch

My read is that the tape arithmetic is real but incomplete, and the gap is where most people get hurt. The $4.56 per terabyte buys cartridges, not a working backup. The drive is a separate purchase — a used one runs a few hundred dollars — and the workflow is manual, one cartridge at a time, offline [4].

The capacity claim needs a second look too. A label on an LTO-5 cartridge says 3TB, but that assumes 2:1 compression you will not get on photos and video. The usable figure is about 1.5TB per cartridge [4].

Tape is cheap per terabyte and slow per restore. A restore is the only moment the whole exercise matters.

There are three honest hedges on the other side. The index is retail listings, not a survey, so its cheapest rows move week to week [3]. TrendForce expects the DRAM rise to slow, not to stop [2]. And Raspberry Pi says it will reverse its increases when memory prices subside [1].

I would not build a five-year plan on any of those. I would not pretend the trend line is permanent either.

At a glance

  • The Big Shift: The cheapest hardware for an owned, always-on stack got dearer in the same week that the cheapest storage turned out to be tape. Both moves trace to AI datacenter demand pulling memory and flash capacity away from consumer parts.
  • Why It Matters: The self-hosting case rests on a capital cost that used to be stable. If a 2GB board rises 19% and a terabyte of disk costs $23.57 at the cheap end, the rent-versus-own comparison has to be re-run, not assumed.
  • What I’d Watch: Whether buyers follow the vendors into older silicon, and whether the second-hand tier absorbs the demand.
  • Headroom: Memory you paid for and do not use, which is the first thing a price rise makes visible.
  • Media tiering: Fast flash for what is read often, cheap disk or tape for the archive.
  • Used enterprise gear: Off-lease drives and old tape libraries, now the value end of the market.
  • The Catch: Tape’s price is media only — the drive, the manual workflow and the slow restore are the rest of the bill. The index reflects one week of retail listings, and the memory forecast is for a slower rise, not a reversal.

Related reading

Sources

[1] Raspberry Pi, “Price increases for 2GB Raspberry Pi 4 and Raspberry Pi 5” (Eben Upton, 2026-10-01) — https://www.raspberrypi.com/news/price-increases-for-2gb-raspberry-pi-4-and-raspberry-pi-5 [2] TrendForce, “AI Server Demand Sustains Memory Contract Price Increases in 4Q26, While Consumer-Side Pressure Persists” (2026-09-30) — https://www.trendforce.com/presscenter/news/20260930-13258.html [3] Disk Prices (US), price index, last updated 2026-10-03 16:18:45 UTC — https://diskprices.com/ [4] Hackaday, “Backup Tapes Come Back To The Homelab” (2026-10-12) — https://hackaday.com/2026/10/12/backup-tapes-come-back-to-the-homelab/