Bible prophecy helps us to better understand the future and realize the urgent need to spread the Gospel. It motivates us to personal purity and gives us hope in a hopeless age.
Most of all, I believe God has chosen to bless this series. In doing so, he's giving the country and maybe the world, one last, big wake-up call before the events transpire.
If you are worrying about tomorrow, you can't possibly enjoy today. Think about it: you can't really give God tomorrow; you can give him only what you have, and today is all you have.