Yes, indeed. I find most interesting that the newest contract was for the QS-H150, the handheld sniffer. And this is for a U.S. government agency! TSA approval was for the QS-B220, but the approval is having a beneficial effect on the handheld as well.
It could be that there is some real statistical analysis going on. Somebody might have noticed that even though the 150 in noncontact vortex mode might not be able to lift the same picogram quantities off a target as a swab can since the 150 can be cycled much quicker than other systems it will end up detecting on average perhaps 5 times more suspicious targets. It also has some kind of contact mode where either a swab is used or the intake actually touches the target. It cycles much quicker and covers a much larger area than a swab. I bet there is a tendency when using a swab only to wipe around 10 square inches - especially on people. A 150 can collect vapor and particles over 10 times that area very quickly. When you combine speed and area covered maybe you quintuple the chances for detecting trace of interest.
Another reason for sales of the 150 is that they could have made unadvertised improvements in the systems that don't end up in the brochures - yet.