I am from Turkey and just wanted to give some information. Generally tourists who come to Turkey are only visiting the south region which includes Antalya, Alanya etc. Also Izmir and Cesme, Bodrum, Marmaris are popular destinations, too. I am pretty sure that those who visited Turkey above have been in Antalya
Pamukkale is popular with its travertines. Check the google image results below:
http://images.google.com.tr/images?h...erde+Ara&gbv=2
I just used the word "Pamukkale" and here are the results
Because of these travertines, Pamukkale gets lots of tourists but of course not comparable with Antalya etc.
Probably seller found an end-user (maybe a hotel or travel agency). But I must say that it is not a bad investment and not a bad domain at all.
Also I believe that Antalya, Marmaris, Bodrum, Cesme Com domains are worth more. 3 months ago Bodrum's org extension sold for 1k and I sold Cesme's org extension for $300.