Actually to them, it is not even just about getting cheap, it is about taking advantage of the weak hands in the market which is where they believe that the ability to make more money in the long run will come from. As long as the market is speculative, a lot of people want to get rich fast, it would always be an easy ride for them.

They usually play with emotions and since they have huge bucks to drive the market the way they want, it makes manipulation so easy for them, which would not have happened naturally if the market is not highly speculative and natural demand drives the market instead which I believe we will get there some day.