I wasn't alive, and wouldn't be for some time, but I agree - it's a pinnacle achievements of mankind.
If we could put a man on the moon why the hell can't we put a man on the moon!
We certainly could if we wanted to. We still have all the reseach notes. Computing power, materials science, chemistry and biology has advanced by leaps and bounds. But it'd still be pretty expensive - just like it was back then [
cite], and for what? The reason we did it back then had much to do with the existential struggle for existence against the soviets by developing reliable weapons delivery systems to get nukes on soviet soil. Which we did, and got to ground the bombers. That ICBM tech and it's subsequent generations is still our deterrent. Mission accomplished.
I'm not convinced that maintaining that capability is a good use of public funds. Change my mind.