[Gustoo]

To clarify - on a vendor in EQ if the vendor has a full rack of items (I don't know the quantity) your item will be burried and unbuyable until some of those other player vendored items are purchased and cleared out to make room for your item to be visible to purchase.

So it might be worth doing if there are a lot of low cost items to buy for cheap. Who knows what the vendor markup will be though!