Remember those moon colonies people predicted in the 50s? People have repeatedly over- and underestimated technological progress and its economical use/feasibility.
Of course it matters. When you need space (for the machine and materials), an initial money investment (for the device and materials), time (to learn the device, for maintenance etc.) that's already a severe disadvantage.
Don't get me wrong, 3d printing will certainly find its use, e.g. for niche products or creative arts, for specific productions that might not be feasible for mass production (which is actually a really amazing use), but there's really no good point why (local) 3d printing would cause problems for manufacturing companies (in the forseeable future). That said, I'm sure we might reach the point someday where 3D printing truly replaces traditional manufacturing for various (mass-produced) products, but it seems dubious for the near future.