Probably something as simple as an inventory issue.
If you want Hertz, you may want to try an off airport pick-up location for better rates, or just go with Avis... sounds like a very good rate for a premium car.
A few weeks ago, each wanted $100/day at SFO, but were renting cars for $30 a day downtown including free airport drop-off on my return. Spent $5 on BART and saved $200+ for a three day rental and dropped the car at SFO.
Last edited by SFO777; Jun 8, 2009 at 4:31 pm