Who has the largest collection of Smurfs?

Could you elaborate on the topic of who possesses the largest collection of Smurfs? Are we referring to the classic cartoon characters created by Peyo, or are there any specific Smurf figurines, merchandise, or memorabilia being considered? Are we looking for an individual or an institution that might have amassed this collection? Additionally, is there a particular criterion for determining the 'largest' collection, such as quantity, rarity, or value? Understanding these details would help frame the question more precisely and elicit an informative answer.