If I remember right it is also not that easy to use UV-Mapping on NURBS Objects. You can also get Gaps in the meshes with NURBS surfaces, as soon as you cut them or have holes in them. This is (AFAIK) the reason why Weta (Lord of the Rings movies) changed all their models from NURBS to SDS between Part I and II. At least that's what the "Digital Production", a german magazine, told.

A ship in port is safe; but that is not what ships are built for.
Sail out to sea and do new things.
-"Amazing Grace" Hopper

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