With the successful launch, SpaceX will go into the history books as the first private company to put a human into orbit.
Yeah! That's a HUGE deal.
It has never been done before. In fact, according to Business Insider, this trip is also a big leap for America as the last time they launched American astronauts from the US was in 2011.

Interestingly, the US astronauts have been relying on Russian Soyuz rockets to bring their astronauts to and from the International Space Station.
What do Russia get in return? Money!
It cost America US$21mil (RM91mil) per seat in 2008 and more than US$90mil (RM388mil) per seat for a Soyuz flight scheduled for October.
Business News
All You Need To Know About SpaceX's Crew Dragon And Their History-Making Mission