Just a few weeks back, Funan is still selling 2gb ddr2 rams at
$70 odd.
$100 seems expensive. Though you will have to see what type of
ram is it.
I'm not the expert on pricing.. (You can say that I
am still living in the 2005-2007 Price range era ) Haha..
Anyways, you can refer to this thread:
DIY PC Configs,
Prices, Guides (click)
The gurus here are bargain and battle harden blokes who know
where to get the best deals from the best shops