Share 'Robot Coupe vs. Thermomix?'

I am thinking of adding another piece if equipment to all of my kitchen gear.  I am thinking of either a Robot Coupe or a Thermamix.  I want to use it primarily for making marzipan and ganaches, etc.  Any input about which one to choose would be great.  Also if the suggestion is for a Robot Coupe then suggestions on which model would be helpful as well.  Thanks, Andrea