OTOH:
Late 1970s you: These 8-tracks will be worth something someday when us kids get old and nostalgic for our youth. I’ll save all of them to sell to collectors.
2025 you: Those 6 crates of 8 tracks have been through 10 household moves now and are full of spiderwebs. Should I finally get rid of them before this next move? Naah, the next generation of kids will totally want to collect them. Just like LPs.
For every ordinary sort of consumer item that becomes a collectible, there are a dozen or a hundred contemporary items that don’t.
This recently revived thread from 2023 reminds us of all the things that used to be widely underfoot and hence potential surprise latter day collectibles that instead today’s yute have no idea about. LPs could easily have been another such.