canonical product

Callaway Great Big Bertha 23

Iron Set · Ultra Game Improvement

9
live listings · 3 retailers: $579–$982
asking range: $736
fair, all conditions · 8 comps

buy now or wait?WAIT

The model expects a meaningful price drop within ~3 months just from depreciation.

≈ $4/mo depreciation (model)waiting 3 months ≈ $73 cheaper (model)

days-on-market is measured, but organic clears are a small slice of this product's churn — weigh the velocity accordingly.

forecast: product evidence · verdict recomputed nightly

The verdict

each line cites its basis

Buy window: the cheapest live copy sits $157 under the all-condition fair bar. — fair $736 · 8 comps
Typical drift is −6%/yr (≈ $44 at today's value) — patience usually pays. — value model, curve fit on this product

What it has been selling for

monthly medians since 2026-01

monthly median ask · open points are sparse months (<8 observation days) drawn as facts, never interpolated — the line knits itself in as nightly snapshots accumulate

Value over time

value model, curve fit on this product · 19 obs

$577–$925
typically sells for: −6%/yr
value trend: 91%
held over 3 yrs

median model value by product age, 80% band — about 1 in 5 sales lands outside it · rebuilt nightly

Fair price by condition

Average5 comps: $695

own one? check what it's worth →

Same band, for less

measured comps

Heads rated to the same Ultra Game Improvement playability band, priced materially lower at fair — each fair on 5+ comps, each buyable today. Ranked by what you save, weighted by how well-measured the saving is. Nothing here is paid placement; there is none on this site.

Live listings

cheapest first · 9 live