Economy Guides / Verifying against trade
When to Check the Official Trade Market
A summary value is where pricing starts, not where it ends. The useful question is not whether to verify but when — and there is a defensible answer that has nothing to do with how careful you feel.
These are not competing tools. An economy page tells you roughly where a market sits in about two seconds. The official trade site tells you what is actually available right now, from people who are actually online. Both are correct and they answer different questions, which is why the interesting problem is knowing where the boundary between them falls.
The crossover
There is a real argument here rather than a rule of thumb. Checking costs you a roughly fixed amount of time regardless of what you are trading. Being wrong costs you a percentage of the trade. Those two lines cross somewhere, and above the crossing point checking always pays.
The crossing point moves with listing depth, not with how expensive the item feels. A thinly listed item is worth checking at a much lower value than a heavily traded one, because the potential error is larger. Which makes the listing count, not the price, the number that decides whether to go look.
Six triggers to go and look
Rather than a value threshold, use triggers. If any single one applies, open the trade site. They are quick to evaluate and they capture the cases where a summary is doing less work than it appears to be.
Under twenty listings
The single most reliable trigger. At that depth the figure describes a handful of opinions, and one seller changing their mind moves it visibly. Go and see what is actually there.
It is a rare item
Not a trigger so much as a requirement. No summary price exists for rares, because every one is a random combination of modifiers. Trade site or nothing.
The roll is unusual
A variant near the top of its range sits in the steep part of the value curve, where a summary row cannot help you. Price it against comparable rolls instead.
Something just changed
A patch landed, a build went viral, a mechanic became farmable. Listings reprice before summaries settle, so for a day or two the live market is ahead of the figure.
You are buying in bulk
Per-unit figures do not include the discount most sellers give on quantity. Your real cost should come out lower, and the bulk calculator handles the split once you have a rate.
The quote is far outside the range
Someone offering well under or asking well over the figure is worth ten seconds of verification. It is usually explicable and occasionally it is not. See why cheap listings mislead.
What each one can actually see
The tools differ in kind, not just in detail. Understanding which questions each can answer stops you asking the wrong one.
Two rows there matter more than the rest. The summary is the only place that shows you movement over time and lets you scan a whole category at once. The trade site is the only place that shows you what exists right now. Neither substitutes for the other, and using the wrong one is how people end up confidently negotiating against a listing that has not been available for a fortnight.
Searching properly once you are there
Most of the value of checking comes from four habits. Skip them and you will read the trade site about as badly as you were reading the summary.
What checking cannot fix
Still true after verification
- Listings are still asking prices. The trade site shows what people want, not what anyone paid. Verifying gets you closer to reality; it does not get you to a recorded sale, because no such record exists.
- A thin market stays thin. If four people list something, seeing those four listings does not make the price more certain. It just makes the uncertainty visible.
- You still have to decide. The trade site narrows the range. It does not tell you whether the trade is worth making, and no amount of extra checking converts a judgement into a fact.
- Your time still costs something. Verifying a two-chaos purchase is a loss even when the verification is perfect. The trading mistakes guide has the arithmetic.
The short version
Use the summary for orientation, and reach for the trade site when the potential error outweighs two minutes. In practice that means always for rares, always under twenty listings, always for unusual rolls, and always when something just changed — and for everything else, only when the trade is large enough that a few percent matters.
Getting that boundary right is most of the difference between someone who trades efficiently and someone who either overpays constantly or spends their evening verifying purchases worth less than the verification. Both failures are common, and they come from the same missing habit: reading the listing count before the value.
