Does a plumbed, self grinding coffee machine at 300-500 USD exist? my office is looking for a new coffee machine to replace/upgrade from a keurig. I've been given three constraints.


It can be plumbed so we don't need to keep filling the water reservoir.
It grinds beans as needed.
It can be found new between 3-500 USD


My search yesterday only lead to finding machines that fulfilled 2 out of 3 constraints.

Any suggestions greatly appreciated.
I had a friend requesting exactly this for his gym recently and we were unable to find a machine that fit all three constraints. 

The options were basically choose a commercial level plumbed machine with a separate grinder, or a home level grinder / brewer combo and pour water in yourself.  I think there may be some basic technological problems with sticking a grinder right on top of a brewer, since it would probably be subjected to less than ideal environmental conditions (all that water vapor getting on your burrs / into the bulk beans can't be good)

If it is a low volume situation, the Cuisinart DGB 900BC might work, if high volume I would recommend a plumbed Bunn / Curtis Airpot system.