There is also another problem with Acropolis - in current days teams are not so interested in so rough stages. We can see it in WRC Turkey. Current cars are made mainly for speed and they are not so strong to survive rough events. And, of course, after the race you must invest lot of money to get car back to good condition. So in final, there is very low interest of greek drivers to do Acropolis and also drivers from abroad are not so interested to go there...