That's not how order books work. New tokens don't get listed at some pre-determined price. People who buy up tokens in pre-sales are allowed to move their tokens onto exchanges, and list them for sale for whatever price they want.

Obviously they're looking to sell them for more than they got them, but more often than not, the general public doesn't care enough to buy them at higher than the pre-sale price. There's significant risk involved when participating in pre-sales. It's not like it's just a free money free for all. Those are the ones you don't hear about because no one is in the office bragging about how much money they just lost.