what to do??

Many items are sold on the ah way cheap because people don't now what they are doing what you should do is to buy all items where you can make a profit just by disenchanting them pretty simple hey. But many people will just coast around trying the buy low sell high technique but wont experiment in different field or use their professions well to be honest they are just being silly and have read how they can make thousand of gold by buy low sell high which is true but they can make more if they use their professions and convert mill disenchant or whatever the money is there for the taking.