Help!  I'm in the process of buying out a coffee shop.  Inventory has a La Marzocco 2 group- listed at over 9k!  This machine is approx 4 years old and has broken down 2 twice in the last month.   I know it's a great machine- but I imagine this must be the "new" price.  The alternative is a 2800 Rancilio- l year old- for approx $2500.  Anyone have an idea what the going price on the used Marzocco might go for???