We have done our best to keep the registration fees as competitive as we possibly could. The prices on the registration form are in ISK, but, by way of example, the regular early fee for a non-ICALP participant to a one-day workshop is around 77 euros, which become roughly 56 euros for somebody who registers also for ICALP. The early registration fee for ICALP is a little below 380 euros (including the excursion).
If you know that you will attend ICALP 2008, as you should :-), I strongly encourage you to book your flights and accommodation early. July is prime holiday time in Iceland, and you are more likely to get a good deal on your flights if you book as early as you possibly can.
Let me end, in the style of Numb3rs, by noting that ICALP 2008 is
5 invited speakers
2 prize awards
Thanks to my co-organizer Magnús M. Halldórsson for pointing out this "ICALP for fun" countdown and that this is going to be a Fibonacci-like ICALP!