The generally expected stabilization of DRAM pricing due to the bankruptcy of Elpida is not taking place yet.
TrendForce is reporting falling prices for memory modules in August, which mirrors similar reports from other research firms. TrendForce said that a 4 GB DDR3 module stood at about $18 in the second half of August, down about 4 percent from the first half of the month. Spot market prices are a little lower and were in the $17.50 range.
The trend in September is still heading down with spot prices for 4 GB modules currently hovering in the area of $17.25, with market lows that are touching $17. 2 GB DDR3 modules have fallen below $10 and are currently trading as low as $9.75.
Untested 4 Gb DDR3 (1600 MHz) chips are currently selling for $2.57 on the spot market. 2 Gb versions (1333/1600 MHz) are at about $0.85.

then I'll pop in another 2x8GB can make my rig 24GB RAM for RAMdisk.
then I'll pop in another 2x8GB can make my rig 24GB RAM for RAMdisk.
This is DDR3, not DDR. DDR is generally not nearly this cheap given that it isn't in as heavy production as it was like a decade ago anymore. Furthermore, these 4GB single/dual module DDR3 kits take up far too much space and have far too high power consumption for phones that use maybe one or two LPDDR or LPDDR2 chips. A computer memory module generally has eight or sixteen memory chips along with other small parts.
Ditto. Like every shift in generational tech, the old gets to a point where supply is the highest it will be, prices are rock bottom, the new tech is short on supply and very high on price, old tech supply starts dwindling as the market transitions and fabs convert over, prices for the old tech creep up higher until in reaches equilibrium, prices for new tech start their descent as improvements and market share increases.
@dimar: There's your tech cycle.
I cannot complain though, 16 gigs of the stuff can be found for $60 quite easy now.