The high rates have arrived. Tax is one issue, but the base rates have skyrocketed. My full size car in Kauai [Alamo] this year; began Jan 2010 $350/week to June 2010 $427/week, to this Oct. 2010 $520/week.
I canceled the Oct 2010. Booked full size Hotwire $182.09/ wk, got Hertz. Pays to shop around!