What Does "Reasonable Offer" mean?

don't be a gas monkey asshole... No matter the displayed/ask price, even if reasonable, offer 25% :)

If someone is asking 1K for something that is worth $500, maybe show them the value before saying that's what I'll offer. They may have an unreasonable value on something. Then again, sometimes the hassle of dealing with an unreasonable ask isn't worth it as well.

If it's worth 2K, they want 1K, why are you chiselling? It's all relative.