When does money outweigh sentimental value? 1968 notchback build thread

I feel like I haven't been clear. I absolutely love my car. Always have and always been into mopars, specifically A bodies. I built my first BB when I was 12 for my dads friends dart, built my motor, friends had darts, barracudas and dusters. My dad until last Wednesday had a 71 charger R/T. And until today I never questioned my car. Just had the thought it might be to far gone.