Today I discussed with a fellow classmate that researched the same question as me, our findings. It was clear to both of us that the majority tended to value items based on their sentimental properties as they reminded them of a particular person or moment in their life. We also came to the conclusion that it will depend on the type of person you are what things you are more likely to value. But if you go deeper into that area, it probably has alot to do with how you have been brought up and what you have learned to value most.
However some people do not value things for their sentimental value some value them because of what that object can do or possible how much it is worth in the "material world".