I drink coffee during the winter months, normally Starbucks Dark roast, one large, maybe 2 cups a day. Black, no sugar, like the taste. Buy the coffee at BJ's wholesale club
During warmer weather, Diet Dr. Pepper is preferred
I am drinking more water and cutting back on the soda but that is easy for me during the winter
As to the popularity of the fancy coffee houses, I indulge every now and then, I can taste the difference, most make a very good cup of coffee