Am I in the minority for not being sentimental?

I have been seeing commercials for Christmas about people keeping and handing down keepsakes for generations. It kind of makes me feel bad that I didn’t keep any keepsakes from my own family. To me, it is just items. The real memories are in my heart and head.
How do you feel about keepsakes? Do you have them and do they bring back memories? If so, does it make you happy or sad?