Should I keep my JCards?

[bevins2016]

Hi fellow steelbook enthusiasts.

I was hoping I could get your opinion on the use of keeping JCards. Every time I but and open a steel I keep the JCard because I think that someday if I might want to resell a steel I'll need it or if I don't have it that some value is lost. Is there any truth to this? To be honest I'm tired of keeping track of old JCards and I want to get rid of them but before I do I want to truly make sure they are worthless. I can imagine the headache people who used to throw away slipcovers must have after finding they are worth good money and I don't want a similar situation to occur with the JCards.