Let's be honest, Opera is a GREAT browser but it does have some oddities that just seem like it was made that way, not for the sake of design or efficiency, but just to be different.
It's the toolbar and the lack of customization. Why can't Opera just conform and make it customizable and just be done with it?
Opera isn't inherently "new", it copies a lot of Chrome's features (hence it can run Chrome's extensions) and this would be the ONE feature that would actually enhance Opera.
I just can't see why Opera can't have this option. There's no real logical reason as to why it shouldn't be able to do it.