I actually like the K-cup machines, for brewing tea. I wouldn't know how their coffee is, but it's the first machine I've encountered that brews a drinkable cup of tea. And there's a refillable, non-disposable K-cup available, though it's pretty expensive and, IIRC, made by a 3rd party, so the K-cup people don't get credit for it.

Not attractive enough for me to buy one, but I do think they're better than the average office joe-dispenser.