What incentive do they have to press the accelerator on DRAM production increase? High end DRAM isn't a commodity. A random person can't build a factory and start producing these chips. There's a select few companies (that aren't supposed to collude, but are all members of the same golf, or karaoke, club). There is no incentive for any of the DRAM produces to ramp up production. They have a product people are willing to pay any bags of cash for.
Why would they go do a fool thing like increase production?
Increased production, which comes with risk, will reduce the price of DRAM dramatically. Increased unit sales won't make up for the loss. That's the lesson OPEC taught the world in 1972. They reduced production by 4%, and the price of shot up 100%.
Did you catch that? The production of oil by just the OPEC countries was reduced by 4%, the price of oil shot up 100%. The inverse of that is, if you're producing oil and increase production by 4% the price of it will halve. In other words you'll make less money not more.