Memory chips have had an utterly fickle market ever since there’s been memory chips, companies in that business are still in that business because they learned how to deal with the swings. If micron can survive (and they will) then so will Samsung whose memory chip business has the whole conglomerate to fall back onto.
Would have to buy new board and RAM, not really worth it performance-wise, at least not for me. Some day, yes, but that day hasn’t come and will definitely be after a GPU upgrade.