I don't think that's an accurate prediction. Currently less than 10 year old hardware gets recycled for pennies on the dollar. That's effectively due to the combination of how cheap and how much better the cutting edge hardware is. If it suddenly became more expensive it would just see slower adoption.

Case in point, this very comment section. The major suppliers have discontinued DDR4 production because it's "obsolete" meanwhile capacity for that exact same technology is coming online in China. What makes sense just depends on context.