Games in Australia are 30% overpriced anyway. In the UK i can pickup a PC game for much less. I remember when i purchased Doom 3 in the UK it cost me 40 Pounds ($60 back them). The game here is still over $50 in some places when it was released it would of cost about $100.
Some companies on Ebay only have a warehouse to maintain, where as a physical shop you have bills and employees to pay. Hence the slightly lower cost.
Also all my PC parts that are in the System tab was brought from Ebay. But you just need to make sure that they are legit by ensuring you get an invoice before you purchase (Ask the seller) or you can personally contact the seller and the seller offers insurance on the product.
I think ive spent over $20,000 on Ebay so far.
