I looked up the CA Rail Pass once online, when I was bored and saw it (along with the 15, 30, and 45 day USA Rail Passes) mentioned in the 2016 Amtrak national timetable. Sad those are no longer printed btw, since it was a great way to encourage those less into Amtrak to cosnider such a trip.
That aside, am I right the CA Rail Pass covers Amtrak Thruway buses as far east as Las Vegas and Reno, but that it doesn't cover those riding the California Zephyr, Southwest Chief, or Sunset Limited? That part is sad if I'm correct on that, but otherwise it seems like a great deal for those living in CA.
No clue why other states don't have some sort of statewide rail pass, which have multiple state supported corridors. I.e. Virginia, Michigan, Illinois, New York, etc. As it is, I'm worried the Rockford/Dubuque and Quad Cities trains will never get off the ground, and that I'll believe those will happen when I hear an article that they've entered service.