Some might want more control over the presentation of their photography and a choice of back end service providers (such as getting prints). And, some of the se

Some might want more control over the presentation of their photography and a choice of back end service providers (such as getting prints). And, some of the services you mention have a preference to have you license your pictures under more permissive licenses. These services are great, for free, but once you want something more, they start seeming a little lacking.