Normally I don't often do war machines, but every now and then normal consumer goods companies try to land a contract for more every-day use goods for the army. Ford and its Hummer for instance, or in this case Harley Davidson with an off-road motorcycle. They never got the contract, which made this a very nice find!
The guy in the video got a tip from a friend that this particular Harley was for sale from a storage box that had not been openend for years, and it was still in the crate it got shipped in. So yes , it is fun to watch such an unboxing.