Mike,
If you go the FMCA website and click on rallies you will get the basic information. Pat and I have attended the Indio rally for the past nine years and enjoy it.
There is entertainment provided by the Frustrated Maestros in the morning and during the day. Evenings range from comedians to singers, etc. There are vendors and show coaches.
It is a small rally with participation ranging from 900 to 1300 coaches.
Should you plan on attending, be advised the city of Indio is having some major road construction on what would be the normal travel route to get to the fairgrounds.
Hope this helps. Hope to see you there.

Bob