So you are right about true pidgins, but there are many many expanded pidgins and creoles that are first languages, capable of expressing the full range of human experience. They have books written in them, poetry, music, plenty of literature, which given the smaller time frame they have, as you point out, suggests that we might get a creole 'Shakespear' one of these days.

As a grammarian, the grammars are what interest me the most and they, I assure you, are interesting, if you like grammar - and I fail to understand why anyone would not!