Before I comment on the question posed in this post's title, let me just say that I love this picture, or at least the bike in it. This is a bike that can get the job done...and cheaply. Here I am (and I'm not the only one...you know who you are) bragging about their fancy cargo bikes (mine, of course, is a Yuba) and how much they can haul and all the fancy name brand components...and then I see this the other day locked to a tree in NYC . It's an old Schwinn mountain bike that likely cost a hundred bucks or less and has two over-sized baskets bolted to it. It's also likely that this is one of the numerous delivery bikes seen around the city...in other words, a work bike. Those baskets are awesome, in the literal sense of the word...how easy would it be to carry a week's worth of groceries in them, and no strapping things down. So I ask again...What is a Cargo Bike? In this bloggers opinion, any bike that carries stuff...it doesn't matter how expensive--or not--the bike happens to be. If it gets you were you are going and carries everything you need it most definitely fits the category.