ARCView 2 vs. GRASS -- opinions?

[tim glover]

    I heard recently from a colleague about ARCView 2. From her
    description, it seems like a viable option as a low-cost (approx $400
    US per seat) GIS.  I don't know a whole lot about it, though.  Does
    anyone have any feelings about this package, especially how its
    capabilities compare to GRASS?  Are they competitors or do they
    complement each other?

    Thanks....

    Tim G.