The regular Keurig machine makes filtered coffee; it is not an espresso machine. It makes coffee under pressure - more pressure than a drip machine, obviously, but much less than a proper espresso machine.
Yeah, I used to be a coffee snob too. The convenience of having a fresh, hot cup of coffee within a minute of stumbling downstairs every morning is worth a lot; not having to clean the grounds out of a french press is worth a lot too. Tastes vary, but with 50 or more varieties, there's usually something worth drinking. And, hey, convenience is what sells today; otherwise people would wait to get home to make their phone calls.
I don't understand the drawbacks of an expresso machine though. They rock.
I have and old cheap one that works on pressure from boiling the water at home. It is great, and since there is no pump or anything it will never break. I do have to descale it occasionally though to get rid of the lime scale.
At work I have once of these:
Both make lovely coffee. I can use both to froth milk if I can be bothered. But best of all I can put in them any ground coffee I choose depending on my mood. My current favourite is this stuff: http://www.taylorscoffee.co.uk...
So what are the advantages of a pod over this solution? The delonghi machine above takes pods but I have never seen any benefit that made me want to buy more when the free ones we got with it ran out.