I purchased my Vita Mix 5000 at a Health Fair in Philadelphia on November 8th 1998.  I remember that date as my son was born the day prior.  It has served me and my family for almost 21 years now.  i used it everyday for 12 years and now several time per week.  It just keep going.  The only thing i needed to replace just now is the 64 ounce wet container.