That is not all the items that will go onto a commodity vendor but it sure is most of them. There are some items that are buggy that can screw up an entire vendor and I won't put them on (the gorgon lens comes to mind and you can put some on your vendor but evidently there are 3 or 4 different background item ids, depending how they were made, and putting multiple types on bugs your vendor where your customers won't be able to buy all types). There are also some items that I just haven't put on or thought to put on (the other day I saw someone successfully put on logs instead of boards where we used to not be able to do that). I do buy and sell (if the item shows a max on that shard) and the price difference between my buy and sell is set at 30% which means if I sell it for 1000 I buy it for 700. Many think that is high but after doing the math between the 5% buy commission and the 5% sell commission and the 5% a week vendor fee...if an item sits for about 4 weeks..I just break even.