Just traded in my '01 Outback for the '08 Limited model. I had doubts about buying another Outback - the last one was not much fun to drive, and there were some leaking problems after 90K. After test driving all the comparables, the Outback was the only one that fit the bill - reasonable gas mileage, good safety ratings, reliable, good roof rack for the surfboard, and can hold 25 bags of mulch in the back when needed. So far, so good. The '08 is lots more fun to drive than the '01 - the sports shift option helps. A little more power than the '01, and a generally smoother, better ride. I'm told that the leak problems have been resolved - time will tell.
Interior and exterior design, general riding comfort, sound system, sports shifter, sun roof, option of Sirius radio.
A couple of features from the '01 are missing - there's no longer a good place for loose change or sun glasses, and the cup holders are not as snug. Small stuff, but would be nice.