My brother has a few boxes of unopened baseball cards from the 1980s.
They're not worth anything.
We also have star wars cards from the 70s. To worn to be worth anything, but they brought a lot fun to young me.
If you collect things I feel you should do it because you enjoy it. Collections for collections sake always puzzled me.
Also Beanie Babies. And a bunch of other "collectables". That market crashed. Its very hard to predict.