For years I've had the small business version of Avis Preferred. Thus, I get:

1) a free day per 15 rental days and
2) the avoid the lines, go right to car deal (by far this is most important to me).

What else is there to get with car rental status? The idea of an upgrade seems a bit silly to me, as I really don't care if the car is an Aveo or an Impala.

Is there some other benefit to top-tier status at these companies that I don't know about?