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Re:U.S. Navy to use Xbox 360 controllers to operate periscop... by JustSomeNobody on Tuesday September 19, 2017 @08:16AM (#15283927)
> Knock offs are $20 on Amazon, they're very simple devices.

And that goes right into cstross' second point...

Re:U.S. Navy to use Xbox 360 controllers to operate periscop... by Sebguer on Tuesday September 19, 2017 @09:10AM (#15284268)
Their point was very obviously not that we should buy the $20 knock-offs, but that building these devices is very simple and can be done cheaply.