Oh, c'mon now, let's not degrade into snarkiness... I have no doubt that it was nice--very nice, in fact--to get a book worth $80 for about one-third of one percent of its apparent actual value. The problem is that there were other people who valued the book much more than you did, and were willing to pay that much more for it. Similarly, in this example in china, ***except for the issue of people cutting in line, which I do think is a real problem***, individuals obviously value the iPhone at more than what it is being sold for (which, apparently, is $0 if you sign up for a 2-year contract with minimum cost/month). When goods are valued by people, prices *will* be paid for them, no matter what. For you, post-college, you would have had to get there earlier than the booksellers to get in line--that would've been a cost for you, paid for in time. You still would have been paying for the books, but in time rather than money. Some people value their time more highly, and would gladly pay more to NOT have to wait in line; to that end, these scalpers provide a service.
You've gotta realize that it doesn't matter if the book buyers knew who the artists were or not. They were people that got the books to the people who DID know who the artists were, and who valued their work at $80/book.