Sometimes worth and value are not the same thing. I see people on the TV program Pawn stars selling an old family item for a few dollars and then say they are going to have a good meal or spend some time at the slots.
Money is relatively easy to find but a 100 year old cameras or some other items like that are not so easy to come by.

Out of interest I would like to have some idea of the value but would never sell it.

David