I am currently working with the same dilemma WAW vs. CAI, I have seen few recent prices ex-WAW for DONE4 being 5.000 USD + taxes and I am just waiting a reply from WAW regarding my routing. The biggest problem I have, like many others here, that I want them to issue the ticket, charge my cc and then send the tickets by a courier service. What is still open question to me is that can they issue the ticket, book first 2 flights and keep the ticket there for collection if the sending is out of question. And also how much in advance can they do this...