Photo courtesy of Keurig, Incorporated Convenience is expensive. Well, at least when it comes to using a machine to make coffee one cup at a time. Keurig knows the price of convenience, and it charges accordingly. The company makes the biggest-selling line of single-cup brewing machines on the market, and the vast assortment of Keuring-branded coffees capsules that go inside them. Its brewing machines cost anywhere between $80 and $250 each, and … [Read more...]