I am looking forward to a 75 mile freeway commute. 150 miles per day. The 2 guys I know with a Prius get 40 mpg during a high speed commute. My friend with the VW gets 49-50 mpg. It may be driving style. I don't expect to employ mileage tricks and will pull onto the freeway and set the cruise at 75 mph for 70 miles. How does the Prius handle that for mileage? I love the technology and plan on getting the Prius but I'm not sure it's worth the money for this type of driving. As a side note, my real decision is between the Prius and Avalon. I can get $500 off on a Prius and over 2K off on an Avalon. That makes them only a couple thousand different in price and another work associate claims close to 30 mpg commuting in the '05 Avalon. I will be paying cash and the money is not an issue. I just like both cars and the Avalon is amazingly quiet at high speed. I love the Jetta diesel with the new 6 speed auto but am afraid of the reliability. I just want the personal satisfaction of driving a high mileage car but don't want to give up a smooth quiet ride.