Yes,
If you like searching for drivers, editing installation files, or just plain love pain, then there is a point!

We have a few 64 bit boxes and the only reason is that when it comes to rendering graphics, the more memory the better. [We have a design build department, and we render buildings/projects for the owners to help them see what we can do for them]. The two graphics guys have 64 bit boxes and the rendering box is 64 bit. They use over 4GB of RAM and that is the only reason we have them.
Rob