My boss and I agree that we are more like Avis Last. I have received multiple free coupons and like you, I am never going to use them.
Getting upgrades is like pulling teeth, and they are inconsistent.
I get to look at the Volvo's and Infiniti's at Hertz, while I drive off in my stripped out sonata (w/ XM). I don't have a choice as Avis is my company's provider.