Anything can turn out to be a good investment if your timing is right. By far the best purchase I ever made in terms of a return were a bunch of Tiger Woods rookie sets just before he started on his tear of Grand Slams. Paid $9 each and for a while they were selling north of $300 lol. I have more than atoned by overpaying for stuff since.
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My avatar is a sketch by my son who is an art school graduate. Some of his sketches and paintings are at
https://www.jamesspaethartwork.com/
He is available to do custom drawings in graphite, charcoal and other media. He also sells some of his works as note cards/greeting cards on Etsy under JamesSpaethArt.