Why I like Wikipedia

I think the reason I like Wikipedia, aside from it being free and having a good amount of information. Is the metadata and the context, which are partly delivered through links. For example, if I look up the Empire State Building, I don't just find out its height (the data), but am linked through to a comparison page and what buildings its record height was preceeded by and succeeded by. I am immediately immersed in the context of the subject.