Totally jealous here, btw!
Okay so check out the post under "destinations" and "Europe". Yeloya just created a cruising Turkey thread. She is very knowledgeable since she is in the biz out of Marmaris, for a long time now.
A poster there responded with frightening day rates for his L45 (which I believe could be too high based on some of my local knowledge and online research).
There too I posted a link to a thread with annual rates from ybw.com, 2015 data. I have not cruised there but have spent months by land and have family
who is there a few months a year. We're in the US and no we also are not scarred off by the political/terrorist stuff....we still thinks it's safer there than here, today's US headlines only backing that up.
I vote Turquoise Coast. My suggestions/experience:
Kalkan -small, a little more Euro and lots of Brits.
Kas - newish marina, walking access to town and i think a pool is included. One of the prettiest places in T. Town is more bohemian, my fav, more of a mix of cultures than Kalkan maybe a little more to do too and your a short ferry
across from Greece
Fethiye - a proper city, busier year round. More marina services. Good hub for inland travel.
Bodrum rocks but it's $$ at their marinas
Marmaris has a ton of yachties in the Winter but I haven't been there but what from Turkish friends say they agree with the three I mentioned.
The buses are great and cheap
in T. For winter inland travels or to get you to Dalamam or Antalya for flights.
S/V Bebe (Amel, 53 I think) has a great blog of these regions along with detailed financials.