Eclipses happen every year like clockwork (it basically is clockwork, but on a huge scale). Eclipse seasons are spring and fall, around the equinoxes. You could very easily fly to see a total eclipse every few years if you want to, because we know when they are going to happen and where will have totality - it’s very routine stuff. There’s literally nothing special at all about the one that just happened, except that a lot of people haven’t seen one before because it hasn’t happened -at that location- in a time.
So no, absolutely not something you’ll never get a chance to see again, tho you won’t be able if you go blind like a fucking moron.