See how evidence becomes a price range.

The same card can appear across eBay, Mercari, proxy services, Instagram, Discord, X, group orders, and local communities. Some sources show completed sales clearly. Others show asking prices, claimed sales, or private transactions with limited context.

A single number can hide that uncertainty. Low, mid, and high values show a more realistic view of the accepted evidence and help collectors see whether pricing appears stable, wide, strong, or thin.

Useful pricing starts with identifying the correct card and separating it from noisy marketplace results. No individual field proves a match on its own, so KCC considers the available context together.

An asking price shows what a seller wants. It does not show that a buyer agreed. Asking prices can be fair, inflated, experimental, or based on incomplete information.

Sold or completed listings provide stronger market evidence, though they still require review. A completed listing can contain multiple cards, hidden damage, unusual shipping, a private offer, or the wrong card identity. KCC does not treat every marketplace result equally.

The mid value is the median accepted sale amount. The median limits the influence of one unusually expensive or inexpensive sale better than a simple average.

With at least six accepted sales, low uses the first quartile and high uses the third quartile. With fewer than six accepted sales, low and high use the minimum and maximum accepted amounts because the sample is too small for useful quartiles.

The confidence score is a 0–100 signal describing the strength of the evidence. A higher score means the current evidence is stronger. It does not mean the card is more valuable. A lower score asks collectors to review the sources and spread more carefully.

Liquidity describes how easy or difficult a card appears to price from visible market activity. Frequent accepted sales can make pricing easier. A rare card can attract demand while producing very few visible sales.

Liquidity and value are separate ideas. A common album card can sell frequently at a low price, while a high-value broadcast card can appear too rarely for a stable range.

Album cards, pre-order benefits, lucky draws, fansign cards, broadcasts, tours, memberships, collaborations, events, store benefits, units, and special editions can have very different markets even when they feature the same member.

Scratches, dents, whitening, bends, print lines, and corner damage can lower a sale. Comebacks, tours, fan events, restocks, reprints, member activity, viral moments, and group orders can move demand quickly. A range is a snapshot of available evidence rather than a permanent value.

Marketplace evidence has limits. Listings can disappear, prices can reflect private offers, shipping details may be incomplete, and many collector transactions remain private. KCC is one research tool rather than a complete view of every market.

AI-assisted tools can help read titles, identify possible matches, flag mismatches, and organize evidence. Human review remains important because listings can be messy, incomplete, multilingual, or mislabeled.

Collectors can report incorrect matches, missing cards, wrong images, broken sources, suspicious evidence, outdated ranges, and better sold-listing examples. KCC may review and update the affected card when appropriate.