Which side of the customs check they're on makes a huge difference to the legal situation, it could be a sign towards acceptance though as its ideal for customs observation.
Travelersbox told in an interview
http://bitcoin-turkiye.blogspot.com/2013/11/bitcoin-kiosk-of-istanbul-travelersbox.html that kiosks were located both landside and airside. You can find units at the land side next to the check in area, next to HSBC business lounge, gate 214, gate 216 and around the gates.
Wow. Taken altogether, that's a ringing endorsement. Expect retailer uptake to come about because of this. Someone powerful really wants the dollar/fiat system dead, I don't think there's any mistaking that. Or the Turkish political powers want to do that themselves, but that seems less likely... I guess we will maybe someday find an answer to that.