Korg Keyboard Pianos Resale Value

Korg keyboard pianos: price by condition

Seller-declared grades, sterling with an approximate US dollar equivalent at £1 ≈ $1.33 (July 2026). What each grade means.

What holds its value across Korg

• Vintage analogue synthesisers such as the MS-20 and Polysix, which are collected and have risen substantially
• The Volca and Minilogue ranges, which are affordable, current and sell quickly
• Instruments complete with their original power supply, which are frequently proprietary and hard to source
• Units with working keys and sliders throughout, since the controls are what wear on synthesisers

What pulls Korg resale value down

• Scratchy or unresponsive sliders and potentiometers, which is dirty contacts and usually cleanable but reads as a fault
• Failed battery-backed memory on older instruments, which loses the stored patches
• Corroded battery compartments on vintage units, which is a known problem on some models and damages the board
• Missing power supplies, which on older instruments are specific voltages and polarities rather than generic

Identifying and dating yours

1. The model is on the front panel and the serial on the rear — quote both, since vintage values are model-specific
2. Play every key and move every slider, then say plainly which if any are noisy or unresponsive
3. Open the battery compartment on a vintage instrument and photograph it, because leakage there damages the circuit board

What lifts any keyboard piano, whatever the label

Portable keyboards depreciate quickly, so the honest range mostly reflects key action and whether every key still works.

• Weighted or semi-weighted key actions
• Every key sounding evenly with no dead notes
• Original stand, pedal and power supply
• Recognised makers with a following among players

And what pulls one down

• Dead or sticking keys, the most common fault
• Failing contacts causing uneven velocity response
• Missing power supply, which is often proprietary
• Unweighted budget keyboards, which sell for very little

Working out what yours is worth

1. Play every key individually and listen for dead or uneven notes
2. Test the sustain pedal and any expression inputs
3. Confirm you have the correct power supply

What to state in the listing

• Number of keys and the action type: weighted, semi-weighted or synth
• Brand, model, and whether it has built-in speakers
• Whether the power supply, sustain pedal and stand are included
• Any dead or sticking keys, and the condition of the controls

Key count and action: “Yamaha P-45 88 Key Weighted Digital Piano”. Those are the two filters buyers apply first. Say whether the power supply is included, because proprietary adapters are expensive and their absence is a real deduction.

Preparing and photographing it

1. Count the keys and establish whether the action is weighted, semi-weighted or unweighted synth action.
2. Test every key and every control for dead notes, sticking keys and crackling sliders.
3. Locate the power supply, which is very often proprietary, and the sustain pedal and stand if you have them.

1. The keyboard from above, whole, keys visible
2. The control panel and display
3. The rear panel showing the ports and power socket
4. The power supply, pedal, stand and anything else included

When it sells best, and handing it over

Steady with a strong Christmas lift and a September bump as lessons start. Weighted 88 key instruments sell fastest.

Long and awkward rather than heavy. Postage needs a long box and is expensive; collection is usual and lets the buyer play every key, which is exactly what they want to do.

What buyers ask

Why are old analogue synths so expensive?

They are collected as well as played, production ended decades ago, and the sound is sought after. Working original examples are genuinely scarce.

Are scratchy sliders a serious fault?

Usually just dirty contacts, which can be cleaned. Say honestly which controls are affected — buyers who know synths expect some of this on older instruments.

How much is a Korg keyboard piano worth?

Roughly £60 to £360 depending on condition, against £50 to £300 for keyboard pianos generally. The identification points above are what move a listing to the top of that range.

What the fees would take elsewhere

At the mid-range £210 for a Korg keyboard piano, against what the commission marketplaces would deduct:

Seller-side rates verified 26 Jul 2026, percentages only — the per-order and processing charges those platforms add are excluded, so the real gap is wider.

Listing is free and there is no commission — read how to sell a keyboard piano for the title, handover and timing, or the general keyboard piano value guide if yours is not a Korg.

See also: all Korg value guides · value guides by brand · buying a keyboard piano · Music & Instruments · condition grades.