Last winter I purchased the Festool Sysrock.  I was in the middle of building my barn, all by myself, and it seemed that a little music (or gads, even talk radio) might take my mind off the cold and give me some much needed company.  I was right about that.  The Sysrock quickly became the first tool I carried back to the job site every day, and the last one to be put away at the end of each workday.