I don't drink coffee. I do have a small French press coffee maker for overnight guests--it's much smaller than a Mr. Coffee-type machine, so it doesn't take up too much room in a kitchen cabinet.
However, I don't usually have coffee in the house unless I am expecting guests. It goes bad or stale eventually, so I only buy a small amount at a time. There's usually instant coffee, because I use it in a couple of recipes, so I can offer that to an unexpected guest, along with water, tea, and hot chocolate.
It's an interesting question, having coffee around when you don't drink it yourself. It's easier enough to stash a few tea bags somewhere. As long as you have a mug and something to boil water in, you're good to go. But with coffee, you not have to have the coffee, you need a coffee maker of some sort--a Mr. Coffee thing takes up a lot of room if you aren't using it, but there are French presses or the little drip filters that make one cup at a time. Still, in a small kitchen, having to store anything that isn't regularly used can be a hassle.
And it's not just the coffee. Most people who drink coffee also want milk or cream and/or sugar in their coffee. I usually have a carton of milk on hand, but not cream. And no sugar bowl, so I have to break out the 5 pound sugar canister when someone needs sugar. It's not the end of the world, obviously, but it's always a jolt when I have proudly presented a coffee-drinking guest with a hot, steaming cup of coffee, (hey, look, I remembered that you drink coffee and I got some just for you!), only to be asked for cream and sugar. (Darn, I'm not as good a hostess as I thought I was!)
There's limits to how much stuff you have room for when you don't use it yourself. Coffee maker, coffee, artificial sweetener--I use none of these things. I have a small kitchen. Compromises must be made somewhere.
