That is true for lots of other things. What's the point of building the Taj Mahal? What's the point of running a marathon? What's the point of getting the world record for the longest time spent underwater? Just to show that we can.
> Elon's plan would make a lot more sense if Mars was an Earth 2.0 and we just needed to move a bunch of people there, but it's not and even if we do find something really close to Earth with JWST, it would take centuries to get there.
I agree that we probably won't be able to have a viable Mars colony in our lifetime. However, I do think that the pursuit of that goal will result in lots of useful inventions; just look at what SpaceX has accomplished already.