Quote Originally Posted by fingers99
Because the Open Source nv drivers are fine for 2D and the Closed Source ones are great for 3D.

While I'd prefer it if nvidia Open Sourced their drivers, the latest install routines make it pretty easy to remove, update and install them. For 3D in Linux, they're probably your best bet.
Well, the 3D acceleration works nicely with on my Radeon Mobility 9000 based laptop with only open-source drivers, tuxracer works great I'm sure you might be able to get along with using closed stuff too but when the vendor stops issuing new drivers you are stuck with the latest stuff that can use them. Unfortunately most of the new Radeons are not supported so ATI is not exactly a good alternative either...