> Capsule is far more expensive over the it's lifetime than something like a Gaggia Classic. Capsules aren't anywhere near the quality of coffee shops, unless you're counting Dunkin.

To add on to this - many offices replace their teas with Keurig capsules as well. This leads to a tea that's much more expensive (capsules are something like 4 or 5 times the cost of a tea bag), dirtier, more complicated and more time consuming to make.

Looking at the popularity of Keurig machines, I'm not surprised people saw potential in Juicero.