For my family it actually saved us money. My wife who likes coffee (I dont) she would make a pot and drink 1 cup. By the time she got around to the others it was cold. So for a single cup every couple of days it is a good deal. For someone who drinks more than 2-3 cups a day it is a bad deal.

In an office setting it would 'ok' but only if you wanted some sort of variety. If you do not care about variety a big pot is a better deal.

Also there are few companies out there now making k-cup compatible brewers. I doubt they worry about the DRM they are trying to bake into the cups.