I generally don't believe in any of this needing to be "hoarded" for "value" in an "untouched" kind of state... but that said, I have a few random things that I've somehow managed to keep sealed in their original packaging. Sharing a few of those below!
I'd love to hear what you all keep sealed, for whatever strange (or not so strange!) reasons they may be!
Dragon Ball Super: Broly Original Soundtrack
I didn't care for the movie. I really didn't care for its soundtrack. I keep this sealed as a testament to that fact, and to eternally frustrate specific people (namely Ajay, Tyson, and Terez).

Dragon Ball Online Korean Guidebook
When I was able to track down a place to purchase this (pretty sure TheDevilsCorpse helped me out on that?), I actually ordered two of them knowing that I would probably destroy one for scanning. I kept the second on in its original shrink wrap just for the heck of it!

Dragon Ball GT Game Boy Advance Video
I originally bought a loose cart of this, and later managed to find a ridiculously cheap sealed version that I just keep like this because it's funny.

Original North American Super Battle Collection Figures
I own Goku, Vegeta, Super Saiyan Vegeta, and Freeza from this line. Yes, Bandai actually released these directly themselves in North America back during the original syndication run! Irwin's later release wasn't the first time! These are notable for things like, well, spelling "Freeza" correctly!

Krillin with a Machine Gun
Never forget.
