Assuming someone is being a malicious, because you found the item being sold at a different price elsewhere, does not make them devious.
A. The seller might be a super casual player that doesn’t have a good idea of what the average market price of an item is.
B. The seller might have something come up irl and aren’t able to adjust their prices as often as others.
C. Sellers have no way right now to know what the average selling price of an item on their planet, or in the universe is.
**This is not “players being malicious”. **
This is the game not providing enough data/tools for players to use.
Sellers cannot get a good feel for average prices…buyers cannot get a good feel for what is considered high or low.
I’m sure no one goes to the trouble to build a shop, craft items, etc…just to have items sit and not sell - or to be mean to buyers by “overcharging” them. I’m sure they’d all like to sell items to shoppers at fair prices so both parties get what they want.