I’m not certain, but I think the success (or is it failure?) of a household is proportionate to the number of coffee varieties available at any given moment. We are currently up to eight different types of coffee (and two types of hot chocolate) so we might be doing ok.
This is somehow related to the number of alcohol choices available, but I’m not sure exactly how. We need some work in that area, although we do currently have two different types of scotch and some Jack Daniels. The latter is really all any household needs, right?