What is this estimation based on? I'd think once the bubble pops pricing would start to return to normal levels and the general consensus seems to think the bubble won't last that long.

"once the bubble pops" people probably won't be interested in buying RAM.

If you would have asked me 5 years ago this wouldn't even become a bubble. I'm still amazed it did. It really taught me how much of the modern economy is just grift.