[Suggestion] Icon/tooltip indicating if an item can be bought from a vendor

[nranola]

On my server, I've seen several people on the marketboard listing NPC vendor items upwards 3x the original price - and a lot of unknowing players falling for it. This is particularly painful to see with the housing items being sold by merchants in the residential districts (Spirits Collection, Pile of Tomes, Scattered Documents, etc.).

What I think would help players make more informed marketboard purchases is to add an icon or a tooltip indicating that said item can be bought from an NPC. It doesn't necessarily have to say where you can buy the item, although of course it would be much better if it did.

EDIT:
After some discussion, it seems to make more sense to include vendor location and the price. This will help players become more aware of vendor items, discourage players from reselling vendor items at a ridiculous markup, and it makes the research process faster for people who like look information up online.

A more detailed implementation would be to have different stacking icons/tooltips for the different ways (desynth, airships, dungeon drop, etc.) that an item can be obtained for quick reference.