I won a free copy of their BreakTweaker product back when they were giving that away in the SonicTalk podcasts. Didn't really have a use for it -- I don't do EDM or anything like it -- but it was neat to play around with for a few hours.
Recently decided I needed/wanted Neutron, and was pleasantly surprised to see that because I was registered owner of one of their products, I qualified for Music Production Bundle 2 at $299... which I purchased without hesitation.
I'd say that worked out well for them! ("First one's free, kids!")
Wish more companies had a similar "own everything, or nearly everything, we make for one reasonable price" attitude. (*cough* Native Instruments *cough*)