Ali Çehreli:
No, the Turkish version is free as well. :) Some people complain that there is no way of showing material appreciation.
Human psychology is not linear :-) Sometimes if you pay some (a little) money you think of it as more important. Sometimes if you have a way to give back to the author you feel better, and this makes you appreciate more the work.
Money isn't just for money. Money has also effects on the mind of people :-)
Bye, bearophile
