I had a Legacy Vitamix for over 10 years and I used it every day, sometimes twice a day.  I loved it and got my money's worth, but finally it was time to move on.  I got the Ascent  A2500 and splurged a little with the three program settings.  I love it!  The base is wider in the A2500 and this is a great feature.  I have used the program settings and they work great, and I can walk away and know the machine will shut off.  I hope to use this one for the next 10 years or more.