Obama presidential library won't have any library materials

And other than it being a temple honoring Dear Leader--please explain why a presidential library is being built for him on Chicago's South Side?

From the Chicago Tribune:

Once the Obama Presidential Center is constructed, it will have a children’s play garden, sledding hill, green spaces for picnics and outdoor gatherings, basketball courts and even a recording studio, officials have said.

But what the space won’t have is all of former President Barack Obama’s manuscripts, documents, letters and gifts he collected during his time in office. While the Presidential Center is about four years from opening, a conversation has begun about what the facility will mean to scholars and to local research universities without those items.

Basketball court? Sledding hill?