Yesterday (April 25) marked my 366th consecutive 10,000 step day. The last week of less than 100,000 steps was June 8 - 14, 2015. The bulk of all this walking comes outdoors, in all weather, although I've learned how to walk in place, indoors -- hence all the educational videos.
Fitbit is a tool, and a means to an end. That's all. The key element to me is the necessity of staying active throughout the day in order to meet goals, but moreover, so as to keep the metabolism humming along.
Intake matters, too, and no, I don't always manage portion controls very efficiently. The point is to at least feel like you've earned the extra pizza and beer.