I'm surprised you don't have Chiastic Slide, it is considered one of their best works.

I'm sure I will like the last two albums, I don't dislike them, but you know when you pay for music you expect more from it.

Have you heard "Augur" by Interloper? One thing which I find lacking in Autchres work is voice sampling, I find a techno record can sound quite empty without some. This album by Interloper is one of my favourites of the experimental/industrial/ambient/electro genre, yeah that's like 4 genres I know but it's a difficult album to categorise. It is very dark and atmospheric, and contains lots of nice voice samples.