Commercial mining on the moon is the near future.
There are REMs there in quantities higher than on earth. There are resources there for rocket fuel that make it the perfect stopping off point to refuel for Mars and the Asteroids.
Lunar factories are only decades away—not centuries.
However, the logistics/facilities are a ways off for mining. I see consumer space flights before that. SpaceX, Virgin Galactic, Boeing and others will reap billions from such consumer flights which will pay for more exploration.
Is SpaceX (Musk) the only one eyeing Mars for a manned flight? It's all moving so fast, I can't keep track. Just glad to see all these advances in my lifetime. It has always been on my bucket list to witness a manned landing on Mars. I doubt it will happen before I kick off, but just orbiting a manned mission would be thrilling.