Well they were kind of expensive considering Jon Risch posted how to build them for under $100 for a set of 4. They probably had a large initial campaign but lost steam due to a lack of sales. The reason they were in so many rooms was because they supplied them for use, which costs money to be there, money to provide all of the lens' themselves - in other words while they were making a good profit on what they sold, it probably wasn't enough to justify such a large presence at the major trade shows.
CES: Where have all the Argent Room Lenses gone???
In comparing photo coverage of CES 2006 with shows a couple years back, it struck me that the once omnipresent Agent Room Lenses seem to have fallen out of favor. This is surprising when I consider all the good reviews the product received. Any ideas why they have vanished?