A dyson swarm, even a very small one (relative to the size of the sun), would provide insane amounts of energy.

Moon tourism will be big. Once it is economical to offer prices in the low six figures, lots of people will want to go.

Setting up a successful colony on Mars will be an immense challenge that will require many beneficial technology and engineering innovations that can be exported back to Earth.

And of course there is the immense scientific value of exploring other worlds.

It's going to happen. It's just a question of when.