I file this guy under the same category as guys who have extensive model train sets, take part in Civil War Re-enactments, and/or are members of SCA.
At a minimum he provides some historical value. Give him some credit, there had to be some reason why everyone spent more than 10 seconds on his website. Maybe he went to the extreme (obsessed, or even close to crazy), but he is promoting what you all promote in this forum: being well dressed. Just to take the analogy of those who re-enact civil war battles: at least they provide history channel footage. They preserve what would otherwise have been lost (at least in the masses minds).