Before anyone jumps on me, its a free market and people are going to do what they want to do. (just a example) But I have to laugh every time I see a item selling well for 90k and then some one comes along and is selling the 4 of the same item for 60k and then the next guy comes along selling the same item for 40k! And before you know it the 90k item is worthless.

What I do is buy low and wait for the low ballers to go to bed and raise the price and profit when I wake up in the morning. If people could wait more then 2 seconds to sell something I would be out of business.