TBH I think it's a pointless practice. Cars are there to be driven, not to be shoved in an owners garage or a museum to just look pretty.
After this 55 HOURS of work, the second the owner drives his treasured Gallardo again, it will all be undone. You can't wrap a car in cotton wool so it won't get dirty again.
Fair play to him, if he's got the money then go for it, but if I owned a car like that, I wouldn't worry about doing any of that stuff until I thought about selling it.
Does look stunning though, admittedly.