I like the constant battle between Nespresso and all of the refillable pod makers. I see that the new Citiz and Pixie models won't accept the aftermarket refillables. Still, it's only a matter of time before they do.... I'd prefer the option of being able to occasionally make my own, as I've run out of ESE pods a couple of times and am cranky until I get them replaced.
I currently have an Italian LaPiccola Sara ESE pod espresso and will probably switch to a Nespresso in the next half year or so - don't like the steam function of the Sara and the difficulty of cleaning the entire machine. I had a Swiss Saeco for a little over a decade but toward the end I couldn't get parts to fix the pump anymore.