Taipan Value Engine

Keyboard Resale Estimator

Tell it the brand, model, condition, and what the keyboard cost new, and it gives you a range. The advanced options let you add the box, the accessories, and how good your listing looks. If it doesn’t know your model yet, it’ll ask for the lowest listing you can find. In the background it mixes fixed adjustments with a model fitted on past sales. It also shows the closest sales it found and what’s raising or lowering the price.

Based on real, verified salesNot a price guarantee (see About)

01 · Keyboard Identity

02 · Condition & Retail Price

$

What it cost new when it came out, not today’s price. The engine anchors on this and applies modifiers for condition, packaging, collab status, and platform.

$

If it’s still sold new, enter the cheapest new price right now, sales included. A used board rarely sells for more than a new one, so the estimate won’t go above this. Leave it blank for sold-out boards and collabs.

Type a model to search eBay or r/mechmarket
$

A listing from anywhere counts, r/mechmarket included. The eBay link opens Buy It Now listings for this model (cheapest first), and the r/mechmarket link shows the newest posts for it. Skip anything that’s just keycaps or parts, and use the cheapest one that’s the same board in similar condition. The cheapest new price still counts if the keyboard is listed as new. Note that this is optional when the dataset covers your keyboard, but it’s required when it doesn’t (since it becomes the main anchor).

Hidden fields use defaults: no box, no accessories, stock build, eBay, decent listing presentation (7/10).

Complete the form and click Estimate Value to see results.

How the Engine Works

1. Condition multiplier

Condition is applied to the price when new: Mint = 100% of retail. Excellent ≈ 87%. Good ≈ 72%. Fair ≈ 53%. Poor ≈ 35%. Boards with no collab then take a further 0.85 depreciation factor. The grades are set from experience reselling boards, since the sample is still too small to measure condition on its own (see About).

2. Structural modifiers

Box (+12%), accessories (+4–8%), limited collab (+15–100%), then a bump or cut for the platform and for stock status. These stack on top of the condition price, so a mint, boxed, complete collab can come out above what it cost new. A plain stock board is capped at retail; only a scarce collab, custom work, or a recorded sale pushes past that. If you enter today’s new price, the estimate won’t go above it (except for custom builds).

3. Listing quality range

Good photos and a careful description narrow the range and push it toward the high end. A sloppy listing widens it and drags it down. Whether the title is honest counts separately.

4. Statistical cross-signal

A regression fitted on 100+ past sales makes its own prediction from retail price, accessories, collab tier, and brand. If you give it the lowest listing you can find, you also get a second, clearly labeled market-adjusted range (70% estimate, 30% floor) and a note on how the two compare. For keyboards the dataset covers, the main estimate never changes because of it.