Wow, Ive seen some riled up TM users before but not to that level :D
Wow - that is a lot of hate!
Anyone who was genuine about having surplus tickets would only sell them for enough over the original purchase price to cover their costs. (Ticket price, Ticketek fees, delivery fee, TradeMe/Success fees)
Anything else is scalping!
What's wrong with scalping though? Why is it any different from hotels jacking rates when events are on, or a retailer increasing the cost of any rare item that there is high demand for?
We seem to have a belief that tickets are somehow 'special'.
What does annoy me is when events are cancelled, Ticketek et al will only refund the original buyer, not the person who is the current legal owner of the ticket. That IS wrong. It is not 'illegal' or even against Ticketek rules to sell your tickets, so they should refund to people sending/bringing genuine physical tickets to them, not just the person whose card originally paid for them simply to make their own life easier....
You may find within Ticketek's T and C's (I havent looked) that you agree to not on-sell tickets etc, so the original buyer would potentially gain from on-sold tickets to a cancelled event..... its the risk you take buying second hand.