Software engineer. Might not actually know how to do anything mechanical other than understand how the pen works that he uses to write big checks after selling his company. And, no, that's not jealousy, it just doesn't look like he personally gets his hands dirty with any of his collection, and to me that's just not a car guy, that's a collector....could be stamps or WWII helmets or typewriters. Having a bunch of Harleys that haven't been driven and all look the same seems silly too. Oh, but that one is a commemorative one with a frilly seat! Yeah, that's real original.
It's great he's happy with the grandeur of his garage, that's all good - to each his own, but I'm not that impressed. I'm a 1,000X more impressed by a guy like John Shand who produces amazing stuff with his own hands in the back shed in NZ.