Those will come down eventually though.
Hopefully they come down by december next year, its kinda obvious they will but DDR2 is still very popular and DDR3 doesnt show much improvement over it anyway
Then all the rubbish that now we need at least 2gb for most things and since 2gb modules arent the every day thing yet its not great atm.
So, 2gb ddr3 modules, those will be gd gd. Cant see any point in getting some lower clocked than 1600mhz though.