Why did we just take one of those cards out of our hats to blatantly cheat at poker? Maybe what you should be asking is this: why are our knives...in your gut?! You might also want to ask: where is the nearest hospital?! And: is blood as important as everyone claims?!
The people in the Red table are looking to buy this item for the price listed.
The people in the Blue table have the item and are willing to sell it for the price listed
The top of the table is the best price (highest bid / lowest ask)
Items listed are assumed to be unremarkable, no name tags / paint / fancy lvls / low craft numbers / etc
Click on a price in the bid/ask column to sell/buy the item and follow the instructions