The more I think about it the more I think I would have your reaction.I'm on the fence. Driving 7 -8 hours....probably not. But then I saw the Grand Canyon (yup, hole in the ground), Hoover Dam (yup, big dam) and Niagara (yep, big falls). The Eclipse is kind of like that. Cool, awesome, bucket list...but kind of like a checkbox.
I had the same reaction to seeing the things you mentioned plus so many more breathtaking things like Sunrises and Sunsets,Deserts,Mountains,major Concerts,major Sporting Events,even the first time I laid eyes on Walt Disney World.
I loved seeing all of those things and some made me very emotional but not to the point of comparing them to Child Birth!lol
And I never put the "Greatest Thing I Have Seen In My Life" "tag" on any one of those things.
So my best guess is I would be very,very impressed and very,very glad I saw it,but that I would not walk away saying if I had not seen that my life would have been incomplete.
But the only way to know for sure is to see one of those suckers!
G'day Mate.