I can see both sides, keep it vs discard. If it was me I'd have a natural inclination to keep it. However, after my ongoing experiences with my mother's estate, I've changed my views. I have had to go through more than 70 years of stuff, that just shouldn't have been kept. Had to discard tons of effective ephemera. Mom seemed to hold on to everything.
Keep what you hold dear, but don't stack it in closets and tuck it away. Once it goes into storage it's a sign to get rid of it. If you think family would value it, maybe keep it, or simply take a picture and toss it. All I can say is I have a ton of work to go through stuff, and it's not something to wish on anyone. Be kind to the survivors, make the hard decision today, one way or another, and move on.