That's usually because some local player bought the (online) distribution rights for your country for content from major studios before Netflix moved in. Where I live, Netflix has some children's shows and some local stuff. If I want the same choice as Netflix in the US, I'd have to get subscriptions to half a dozen local online video stores. I expect most of those to go out of business in the next few years, and things to consolidate to just one or two players, one of them being Netflix.