Going through a huge stack-o-mail I just opened a nice f/c letter from Avis. It sez "...as a Onepass member you have been selected to enjoy Avis Preferred Select, our premium level of Preferred Service. This complimentary membership is by invitation only.....". One car upgrade, free WSJ etc.

It thus doesnt appear to be a very exclusive club, but it is certainly alive and hopping. I had about 2-3 Avis rentals over the past year or two.