Don't expect DRAM prices to drop significantly until some time in 2018. Many DRAM manufacturers converted production to NAND due to high demand, manufacturers are running into complications rolling process shrinks on their production lines and everyone is including more DRAM/NAND into their new tablets/phones, further driving demand up.
Price stabilization won't happen until Micron and Samsung get their 18-20nm fabs dialed in and caught up on back-orders.