The Pony can use coffee-pods or be converted to take ground coffee.
However I dont know the cost of this
What model did you buy Pony T or Pony commercial ?? as they have different components
The Pony T has twin Heat Exchangers
The Pony Commercial has Twin Boilers
Although I have no hands on experience myself with the Pony a relative has owned the Pony Commercial and used it in a Take away shop