These were pretty expensive, around 900 Euro which includes labor. That is only for the front. In an original Toyota part catalog I see that they are listed for 649 Euro. Maybe Lexus USA thought that these are to expensive and had a cheaper version made for the American market?
I read a review of the cheaper version, were the say that the illumination was uneven and it didn't look as good as door sills of other Lexusses. I just can talk about the ones I have, they really look fantastic and high class. I'll try to make a better image and post it.