sentimental value

:  marked or governed by feeling, sensibility, or emotional idealism

:  resulting from feeling rather than reason or thought

:  having an excess of sentiment or sensibility

:  the monetary worth of something :  market price

:  a fair return or equivalent in goods, services, or money for something exchanged

:  relative worth, utility, or importance

:  to consider or rate highly :  prize, esteem

:  to estimate or assign the monetary worth of :  appraise

:  to rate or scale in usefulness, importance, or general worth :  evaluate