This may interest you
Michiel De Graaf's figure collection
He's a collector in Amsterdam, I would happily bet that he has the largest collection of figures in Europe and one of the largest in the World. Keep in mind this hasn't been updated since 2007 and has grown further since. I think at that time he was giving an approximate number of over 6000 figures, no idea what it is today.
Oh my word he makes your collection look weak! (Which it is not!)