The Question Specialize or Diversify? Control one market or dip your toes into several?
Answer: Well there are many answers to this question if you could choose to do one or the other or even both. There is really no right answer its what you want to do. Lets take a look at all three possibilities and then at the end I will give you my opinion.
First we have specialize this is a very unique way to play the auction hall. Lets pick a example lets use Bold Inferno Ruby. So lets say I control that market and I buy out all the Inferno Ruby's posted and relist so that I'm the only one posting and selling in that market. This can be very time consuming and you could also lose alot of your precious gold you earn this way. For the sake of this post we will go with what my server is selling the Bold Inferno Ruby at. Currently they are selling at 109g a piece. So lets say you are selling yours at 109g each and lets say Joe Bagodoughnuts undercuts you and posts his for 105g each and puts up 5 and undercuts the 5 you already had up. You have 2 options to do here you can either cancel all 5 of your auctions and repost and undercut his for 100g each or you can buy his out and repost. So lets say you choose to buy his out because you don't want him in your market so he posted 5 at 103g each so you just spent 515g to keep him out of your market. But he doesn't realize that you bought him out because you don't want him in your market. So he sees all 5 of his rubies sold and quickly reposts 5 more at the same price of 103g. Now again you buy him out which is another 515g which is a total of 1030g your out and your still waiting for your 5 you already had posted to sell. In this instance this can be a never ending cycle of him posting and you buying his or doing a undercutting match to where you lose profit. But we have to also think if you want to truely control the market you will want to also buy up all the uncut Inferno Rubies which are very expensive as well. Which this method also works very well if you have limited time to play or your more worried about just paying to repair bills from raiding and buying pots and food buffs for the next raid. But there are also some advantages to this strategy because you will know the price of this market and when someone is selling in trade chat for cheap you can take advantage of this. With this as well you will see your gold steadily climb but it is also hard to save gold in the above example. Now lets take a look at Diversifing.
Second Diversifing there are many many advantages to this method of playing the auction house. First and foremost there is unlimited amount of gold you can make with this method. You can take advantage of all markets and even all profession. Lets take a look at the above example the Bold Inferno Ruby. So you have been posting your rubies and been selling them pretty quickly lets say your posting 5 and only getting 1-2 back each time you post. So you go to post a few more only this time you see there are 10 more more than usual and the price dropped tremendously to the lowest you have ever seen it. Lets say there are 6 posted for 75g and 4 post for 50g each and you don't want to take a loss in profits. So you have chosen not to post these right now but you still want to make gold. With being in serveral markets you can choose to put them in the bank for a day or two and let the price go back to where it is. Your not really making any money because your also into 10 or 12 more markets and have a steady income coming in. So what happens is the Bold Inferno Ruby market has crashed and your not even sweating it because you can sit on them and still make gold where as if you were just specialized in that market you would have no income for a few days till the prices went back up or be selling for a loss. Lets say you had a stash of uncut Infero Rubies and you have more cuts for the rubies you can cut something different and still make a profit. Another advantage is you will be able to buy almost any vanity item you want and still be able to pay your repair bills and buy pots and food buffs for raids and even help supply them to you fellow guildies. Now there is a downfall to this method as well in order to fully take advantage of this method you have to have serveral alts that are max level with both professions max level as well which can be very time consuming. And you won't just have to know one market you will have to know all the markets you are playing so your not losing gold and making mistakes. Now this leads us to my choice of which is better.
My chocie of which is better would be to Diversify because like I said above if one market im playing crashes I still have my other markets to play and make gold and pay the bills. Again there is no right answer to this question just the play style that you want.
XanderEragon