Not any different than the people who cut up nice original cars to make them into "custom", low riders, giant wheels and wild lifted 4x4 and such. Or the flippers who gut to the studs nice old homes and install the latest chicom fixtures and cheap dry wall, or just bulldoze it and build something new from the ground up.
I have to say i didn't watch the vid. I'm sure it is akin to the chopper motor cycle guys who seemed to destroy a lot of stuff along the way., They obviously liked doing it and were making the coin to fund it.
That guy does too. It is only stuff. Collect up what you want and can afford and enjoy it, you know, the way you want. And hey, a nifty plomb or even craftsman knife might be a good addition.