It's more the variety of them, not that they exist. I mean "Stealth"? What is that? Just makes me laugh
Yeah, "Stealth" isn't a very good name for that one. I think "Austere" describes it better, but that's not a manly-man kind name. "Stealth" implies that a casual inspection won't reveal its purpose, which is a joke.
I think the best description of its purpose is "The Fleshlight that absolutely does not resemble any of the disgusting masturbation devices that were being sold 20 years ago." Back then, the closest thing you could find to a stealth fleshlight were bananna peels. And as an added bonus, banana peels don't turn your stomach. Some of those old devices were truly hideous, especially the ones that had what looked like fake eyelashes glued onto them to represent hair. Just thinking about them still gives me the heebie-jeebies.