Ah, but the question is whether the consumer is free to choose whichever coffee maker REFILL they want. The ethical and legal question is whether there's a goo

Ah, but the question is whether the consumer is free to choose whichever coffee maker REFILL they want. The ethical and legal question is whether there's a good reason why Keurig should be allowed to forbid anyone else from manufacturing compatible refills (if they want to) or forbid customers from buying these refills (if they want to). As far as US law is concerned, do you think that prohibiting the manufacture of these compatible refills will "promote the progress of science and useful arts"? Because that is what Keurig is (effectively) claiming by relying on copyright law in this way.