People are moaning about ticket resellers again, to which I have to say: naff off, it's the sodding market at work. If artists wanted to make more money from their tickets then guess what? They should charge more in the first place. The problem is that most ticketing systems charge a flat rate to everyone on a first-come first-served basis, whereas there are some people who would be happy to pay more for those tickets, but don't win the time-based lottery, and thus will pay more than the face value of the ticket.
This incentivizes people to buy up what they view as underpriced tickets from the vendors and resell them at the price that the punters are willing to pay.
Clearly, the solution is for vendors to adopt a smarter approach to ticket prices, perhaps in the style of EasyJet, in which tickets bought early go for cheap, and the price increases as demand increases, and offer almost-at-cost buybacks if cancelled far enough in advance.