Not much, the only thing relatively expensive was the expresso machine. Coffee beans we have is mostly Lavazza's Crema e Gusto (the blue/red bags). On sale it is about 11 to 14€ per kilo. We spend a little extra on good coffee creamer (Friese vlag Goudband). I don't drink much coffee but I can't have a sip without making noise...my wife goes "everything alright?", or "shut the @#€# up?".
mbp