When does money outweigh sentimental value? 1968 notchback build thread

there are thousands of these cars out there and the hobby is soft right now.
i don't get attached to things and find it easy to move on but that's me,some look at things differently.
A friend just sold a pro street '69 "to die for" Camaro.His explanation was "i've had it for six years,.time for something else"