The article linked below is a fairly long one, but it goes into great detail as to why the Falcon 9 Heavy is going to have a massive impact on access to space. It breaks through the $1000/lb mark, and already SpaceX has more flights planned than any other launching company in the world (this includes all national governments). In addition, SpaceX is planning to build more rocket engines over the next several years than the rest of the world put together.
If there is ever a real-world example of what brilliant innovation can do to turn an industry upside down, SpaceX is it. We appear to be witnessing a company rewrite every rule, and succeed to the point of eventually changing humanity itself. Not too many companies can come along and say that, and I wish SpaceX all the best.