@hans_w There is that, but people dont realize they also act a bit like a museum for books. A good library can give you access to texts hundreds of years old, sometimes even hand written. Though you can't take them out and not everyone can get access to everything. But you'd be amazed at the kind of stuff they have behind the scenes.
At least in the US, not sure if this would apply to Dutch of German libraries which seem more commercial in nature.