Yes... Zane is a very nice fellow. And he has a passion for Daytonas...
He has what might look like the same watches, but they are all, in fact quite different- Even the SS versions. As a collector, he likes dial and bezel variations; with the 16520, there are several to collect. He has quite a few of the early, rare variants, which are going up in value quickly.
As a collector, I respect him, and can only say that if one has the money, they are free to spend it as they like. It might not make much sense to some people... But most times collectors aren't known for behavior that might make sense to the masses. However, to that particular individual, and to those who share the same views/perspectives on the item in question, it might make perfect sense.
YMMV...