This means it is impossible to predict what items are available on a day to day basis. The number of listings each day is also random and I have seen this range from just one or two items, all the way to ten. New items appear on the BMAH each day and these are randomly generated. Whether you are trying to "make" gold by buying an item to re-sell, or you wish to purchase an item yourself and therefore "save" some gold it may be worth the effort doing so before Legion hits! Bids could potentially reach millions of gold in Legion. I feel this will have a huge impact on the prices of the more "lucrative" items.
However it is safe to assume that the "new" BMAH will accept bids up to this new amount. This has been confirmed by on got straight to the point and asked if this would apply to Black Market transactions as well (which was left unanswered by the dev team). The current cap (999,999g) has been increased to 9,999,999g, so just under 10 million gold. It has been recently announced that there will be an increase on the current gold cap. This means that it is possible to pick up some great items that you can then resell on the regular auction house or trade with other players so it can be a great source of gold if you manage to pick up an item cheaply. You may or may not be aware that some of the items that are listed on the BMAH are actually trade-able. Rather than trying to list all of the items here, it is best to take a look at Wowhead's guide which you can find here. This auction house offers a wide range of items, some of which are extremely rare to obtain and also includes some items that have been previously removed from the game. Without going into too much detail it was introduced by Blizzard as a way of trying to remove some gold from the economy to try to help with inflation in the game. It's location is at (54,14) at the Ring of Blood (northern part of the map). The Black Market Auction House (BMAH) is a separate auction house situated in Nagrand in Draenor. This week Peelyon takes a look at the Black Market Auction House and how you should try and grab a few bargains to trade in Legion.