Given there are many examples of open boxed units I see little reason to open an unsealed unit. If you want to use one then buy one which has already been opened. Save the unopened units for those who would like to keep them sealed.
Oh, if I'd buy such a sealed box just to have fun to have that unique experience to open it, unbox the object of my desire and get hand on it and use it, I would just do it and be happy!
And I wouldn't bother about any concerns of box-collectors ...
Ok - I haven't ever met that occasion and felt that desire. My collection is a bunch of used and teared off second hand electronic stuff, but it's real fun and maybe I'll get my money back if I ever want to end that ride ...
(and I accidentally got two Clamshell boxes, 2nd hand and opened by pre-owners, but in better shape, than that one in the video