Hi,
Here is a quick deal before heading off to work:
Lowest price since March 2013 for the Corsair Vengeance 8GB (2x4GB) DDR3 1600 MHz (PC3 12800) Desktop Memory (CML8GX3M2A1600C9) kit: A$88.43 delivered.
Lowest local price seems to be $112 + Delivery. Thats 40% more than this amazon deal.
Another alternative would be Crucial Ballistix Sport 8GB Kit (4GBx2) DDR3 1600 (PC3-12800) for $84.31 delivered
Good deal if you are in the market for some memory!
Here is the % return rate of memory modules (use google translate): http://www.hardware.fr/articles/927-4/memoires.html
I seem to recall buying the same kit 3-4 years ago for around $50. Has memory gotten a lot more expensive recently?