| ebay.co.uk | n=7 | $3.86 | +102% |
| ebay.es | n=3 | $3.29 | +72% |
| ebay.it | n=6 | $2.46 | +29% |
| ebay.com | n=90 | $1.91 | — |
How is this value calculated?
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene rohe NM-Verkäufe | 25 | 2 mo | $2.37 | 204.08 |
| eigene LP-Verkäufe ÷ 0.8781 | 5 | 3 mo | $1.61 | 3.96 |
Measured error for this era×language (backtest): ±17 %
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.1454 (Sprach-Faktor aus 138 Karten) | 25 | 2 mo | $2.70 | 1.11 |
Measured error for this era×language (backtest): ±22 %
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.0237 (Sprach-Faktor aus 52 Karten) | 25 | 2 mo | $2.43 | 1.12 |
Measured error for this era×language (backtest): ±20 %
Gate not green — shown only here, never as the price.
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.1182 (Sprach-Faktor aus 149 Karten) | 25 | 2 mo | $2.65 | 3.51 |
Measured error for this era×language (backtest): ±18 %
No PSA numbers for this print yet — in any language.
#110 · UR
#084 · SEC
#201 · UR
#209 · SEC
#SWSH152
#98 · U
#62 · RH
#150 · URFrequently asked questions
Auction or Buy It Now — which gets more for Professor's Research SWSH Black Star Promos SWSH178/307?
Across 6 auctions the median was $1.30, across 96 fixed-price sales $1.93. Fixed price therefore fetched about 49 % more — for this card patience with a set price is the better route.
What will I get for Professor's Research SWSH Black Star Promos SWSH178/307 if I want to sell quickly?
Half of all sales fell between $1.72 and $3.29, with a median of $1.94. Selling fast lands you nearer the lower end; with patience, good photos and a complete title the upper end is achievable.
Below which price is an offer for Professor's Research SWSH Black Star Promos SWSH178/307 unrealistic?
The cheapest genuine sales were around $0.97. Offers well below $0.58 are typically fakes, mislabelled cards or a different variant — ask for photos of all four borders and a close-up of the surface.
How does lastsold determine the market value?
lastsold uses only real sales — eBay plus auction houses like Goldin & Fanatics — recent sales count more (recency weighting), outliers and fakes are removed. It's not an estimate but actual sold prices, separated by condition, language and grading.