

I think so.
How high the priority should be is a debate worth having, but space has many ways to wipe out a planet. Having two planets, having a permanent space station, could go a long way to increasing survivability.
Not only that, building in a vacuum, building in zero G, even building things under great pressure, all can allow us to build new materials with brand new properties.
Also, being able to sustain a small group of people somewhere completely contained an inhospitable can be utilized on earth to feed people at home, or recycle water at home.

Still have mine, love the concave touchpads.