Its curious... they've been producing wine in Turkey for thousands of years yet the vast majority, when compared to both old and new world wines commonly available outside of Turkey, are pretty poor quality (and that's me being generous).
I've tasted some seriously good Turkish reds although never outside of Istanbul and, to honest, never when I've been paying the bill as they don't come cheap. I used to look for some of them in Fethiye but never seen much other than the usual suspects, fairly basic blends such as Kavak, Doluca etc. I know Migros used to sell some expensive (but not necessarily good) wines but never fancies playing şarap rulet with a hundred plus lira.
I suppose the bottom line is that Turkey is not a country of wine consumers.
JF