Maybe it's just me but doesn't coffee seem to taste better and stay hot longer in ceramic or glass mugs as opposed to styrofoam, cardboard or even plastic mugs. Maybe it just brings back old memories of the days before those were available, but the flavor seems fuller to me that way.
I totally agree. It annoys me that in some coffee shops they only have mugs for certain sized drinks. These days I check before ordering in a new place. If the larger size comes in styrofoam I will opt for the smaller mug.
While I do prefer to drink coffee in ceramic cups the most, I think cardboard or plastic mugs won't go out of use because they are cosy in case you'd like to drink your morning coffee but hurry to work.