Being a collector is an affliction. A huge house given over to his collection while he relegates himself to the groundskeepers cottage. A lifetime acquiring money to grow the collection. I hope selling it gives him some peace.
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I don't know if the fact he's financially successful affects my read though. It's certainly obvious he had money but unfortunately I don't think the money precludes an unhealthy obsession. Infact it might make it worse.
It is perfectly possible I got the wrong impression here. I don't know him. All I can be sure about is that this was the impression I got reading the article.