I had a quick browse at some photos of used cars on the Lexus website, and found one (an SE-I, I think) that didn't have them. Maybe they are standard only on the upper models.
Lexus seem to be shooting themselves in the foot with the effective de-specing (flappy paddles, Sat-Nav with no ML or Traffic, etc) that they have done.
I've got a '56 IS250SE Auto MM and I can't see myself upgrading it for a newer one, beacase to get all the same toys, it seems you have to get an SE-L for loadsamoney...