It's classic supply and demand; the harder something is to come by, the more valuable it becomes. That's even true for an abstract concept like a state of mind. Anonymity is prized in a totally digital age, so anything that helps you blend into the background even a little bit is welcome.
There may be a hundred other ways for all the monitoring tech to identify you, but it won't be from a bag that's easy to spot from 500 meters. This one is doing its work and keeping its head down, always good advice.