Yeah, as far as I know the Amiga was popular for US TV productions, probably because of the Video Toaster heritage, and the low resolution of TV allowed to render out lower resolution video which didn't require powerful SGI render farms. I don't think Lightwave was ever popular in the PC game development scene (I remember one small Berlin game studio though which sticked with Lightwave for a fairly long time because they had built a pretty extensive workflow around it).