The $499 M4 Mac mini is a repair listing. The usable floor is $625

Supports An ask from $749 to $825

Slightly down since Apple’s Aug. 25 announcement. Measured from their Aug. 21-25 asks to their latest asks through Sept. 15, the 69 M4 Mac mini offers our tracker priced on both sides of the announcement were down 5.7% in total, a median of $50 per offer. That reading spans every M4 mini configuration and condition. The exact 16GB/256GB panel behind the ladder above has not been rerun since Sept. 2.

What that means for a 16GB/256GB listing:

• Nothing in the tracker shows a rise. The matched change starts from Aug. 21-25 asks, so it cannot show how much of the drop came after the Sept. 2 ladder was built. It does show matched asks mostly falling rather than climbing, and a listing still at its late-August ask has not followed that drop and is worth an offer below it.
• The $820 median is not evidence of a price rise. It includes larger-memory and larger-storage machines, so it cannot be compared with the $749 base-configuration median.
• An ask under $625 has appeared. The $573 low is one listing, and this reading does not record its configuration. Apply the ladder’s first row: confirm memory, storage, condition and listing type before counting any sub-$625 ask as a discount.

The same tracker reading for the M4 Pro mini and the Mac Studios is in what waiting has cost, by machine.

Supports An ask from $625 to $749 · An ask from $749 to $825

The ladder prices a listing; this is where the listing comes from. Each median below is what that channel asked for a base 16GB/256GB M4 in our Aug. 21-26, 2026 snapshot, carried unchanged from our guide to where to buy a used or refurbished Mac mini: asking prices from that week, not completed sales and not current offers. A channel median says where that channel sat, not what a listing costs today, and the Swappa and PayMore figures rest on six listings each.

Amazon Renewed is the returns choice, not the price choice: its Aug. 21-26 median sat $100 above the $899 Apple lists for a new M6, and that $999 is a median ask from that week, not a current Amazon price. Two options on that channel. The first, Amazon Renewed Mac mini search results, opens search results rather than a product: they mix chips, memory and storage, so confirm 16GB and 256GB on the listing itself. The second, one exact listing for the machine this page prices, opens a single product: an M4 with a 10-core CPU and 10-core GPU, 16GB of memory and a 256GB SSD, sold as Renewed Premium. Its price, seller and stock did not display when we read it on Sept. 16, as the buy-now table notes, so compare what Amazon charges with an obtainable new M6 before you buy. The $749 used median and Swappa’s $721 channel median are historical. The Swappa, PayMore, eBay and Apple certified refurbished terms were checked Sept. 15, 2026, at the policies linked from the channel guide; the Amazon Renewed Guarantee page did not load that day, so its terms come from Amazon’s published help-page summary, and the new M6’s one-year warranty is Apple’s standard new-Mac term.

At the time, timing mattered: before Sept. 22 a used ask bought a machine a preordered M6 could not yet replace. The one precedent we had measured is Apple’s Aug. 25 announcement. In the 11 days that followed, a matched 127-offer panel of outgoing minis and Studios fell 10.7%; through Sept. 15, a separate 134-offer matched panel of the four replaced models was down 11.9%, and the base M4 mini was the smallest mover of the four. Those are asking prices rather than completed sales, and one prior episode rather than a forecast of what the ship date did. The exact 16GB/256GB panel has not been rerun since Sept. 2, so these figures cannot decide an October purchase.

The $625 floor was real but thin: one Swappa listing, or 0.7% of the panel. Three more machines were at $650. A buyer who treats $625 as the normal price will spend more time waiting than shopping.

The useful range is wider. On Sept. 2 the lower quartile was $706.51, the median was $749 and the upper quartile was $824.75. That means half the qualified asks sat between roughly $707 and $825. A sub-$700 offer is a real discount, but it is not extraordinary: 28 listings, or 20.9% of the panel, met that threshold.

Supports An ask below $625

The excluded eBay listing from the Sept. 2 panel was titled “Mac mini (2024) – Apple M4 10-Core GPU – 16GB RAM 256GB SSD – For Parts & Repair.” Its normalized condition and its condition grade were both parts-only. The older broad category was used.

The historical side of the price tracker already read the observation-level condition and rejected parts-only machines. The live market summary used the broad category. That disagreement is why the same listing could be excluded from history and still set the displayed current floor. The exporter now applies the detailed condition evidence to both, and the panel was rerun without the parts listing.

This is also why a marketplace’s lowest number needs a title check. An extreme low can be a damaged machine, a current auction bid, a deposit, a parts listing or a configuration error. A price becomes useful only after the offer is placed in the right evidence class.