The Turkish economy isn't going to remain strong if they keep doing stupid things like this. The free flow of information is vital to the growth and sustaining of an economy.
I think Erdogan sees China as a model for the future, as a provider of cheap labor. So, Turkey doesn't need to intellectually integrate with the rest of the world.
That's actually our greatest hope. If foreign investment dries up as a result of political instability, enough people might stop voting for him that he might be outed in a semi-democratic process (if he doesn't rig the elections as usual, that is). Otherwise, things will end in violence.