There's a chance that Ionic may get released and may not be a great piece of hardware. All that said, quality aside, I think there are a few things Fitbit has done right.
It took being forced into a hotel room for several weeks to truly learn the value of living with less.
For me I think it boils down to two things: being a supporter of my family and a supporter of people.
One of my favorite podcasts is NPR's "How I Built This." I'm not looking to start a business but love learning about the journeys of entrepreneurs.