I have a floor model mounted to a base with wheels. Personally I feel that a bench top model would have served me just as well, that way you can mount it on a cabinet with drawers to hold drill bits and other accessories. I think your choice should depend on what you are making. If you have very long pieces that require the length of a floor model then that might be your best choice. That said, I have never used the length capacity of my my floor model. I have seen that many of the well known woodworkers featured in magazine articles tend to have the bench top models.
Mike, an American living in Norway