Yeah, I bought the entire collection from the Toymuseum in Mechelen.
The lot was advertised on marktplaats. Gust only wanted to sell it as a lot,
which scared away most interested parties. The price was rather high at first
as well, but in the end I got a very good deal.
There were about 90 cabinets, lots of junk but also some real gems.
Some of the machines that I kept: Computer Space, Defender, and Sinistar.
I sold about half of the collection directly to Stefan from World of Arcade,
which was a huge mistake - after 5 1/2 years he still owes me money

On the bright side though, this mega-buy got me into arcade collecting and
also led me to this site, where I discovered that I'm not the only arcade-loony

Cheers, Marco