I traded in my 2004 Mustang GT for my SE Sport Focus. While I must say that I do find myself missing the mustang, my wife and I plan on starting a family soon so we needed something bigger. Plus, driving a Mustang GT during the winter in rural Indiana where I frequently have to drive on un-plowed, snow-covered roads can get... interesting...
Oh, and going from 16-18mpg avg. to 30ish mpg is nice too!