Lol, if you guys have ever seen the video intro to the butterflylabs warehouse and office you'll shelves and racks of the 500gh/s and the 50gh/s models. My point is that if they really want to made money they would link all they machinery(if they really exist and mine that fast) together to dominate the bitcoin network. Note: the above is just my opinion, if you disagree, then disagree......
Ye, I've also thought that why sell devices (except ofcourse support bitcoin). When you are able to make huge profit by just running all your devices in huge server room...