Any boats being sold, by famous people in your area?

Yesterday i heard on the radio that a famous flemish person is selling his beautiful boat. To me it made no sense, he had alot of trouble getting it where he wanted it, he loved it.
and now he is selling it for six hundred thousand euros.
why would he do that?
this is a man that ran marathons in the desert(however unrelated to the boat).
[link to www.standaard.be]

Not that he is the only person in flanders with a boat , but it is just remarkeable after the trouble he wenth through to get it there and such.

Thanks!