User blog comment:BrightSunshine/Curious about stuff/@comment-32197189-20171019062620

I agree with Luz.

On top of this, it's mostly just what people in Wootmoos/Bradys/Full Aldan are asking AND/OR trading. Keep in mind ppl don't ask for fair trades the whole time; it's interesting to see what ppl take.

Good question :)

It's kinda the same way you know what a black long is worth.

U didn't learn about black long's value from this site, (chances are)