Has anyone got rid of sympathy cards and later regretted it?

Five years ago, my sister died at age 55, and I've held onto many of her personal items like her reading glasses, passport, football scarf, and slippers. These are too precious for me to let go of, and I often find myself opening the drawer to look through them. I also have a large stack of sympathy cards people sent me after her passing, as well as cards she received from friends and family during her illness. I'm curious if anyone has ever thrown away their sympathy cards and later regretted it, since they're not something I typically revisit.  Thank you.