War bayern real Madrid game has not been sold out, the fans too cold?

According to bild reported, although real Madrid will be next Wednesday against bayern Munich at home in the champions league semi-final, but a strange phenomenon is that the game tickets to haven't sold out now.
Can accommodate 80354 people to the bernabeu nike mercurial 1998 at present there are still tickets to more than 1755 is not sold, according to Spanish, newspaper, this is mainly because the cause of the price of ticket prices, the lowest fare of the game is 49, while the highest for euro 900.
Not only with bayern Munich, in the previous two rounds (schalke and borussia Dortmund) and the German team champions league home games, the Santiago bernabeu stadium tickets have sold out.
mercurial world cup 2014 Bayern side of Germany, by contrast, the fans will be more enthusiastic, bayern had previously released the 25000 semi-final second leg with real Madrid tickets, scattered in a short period of time received the publishteentry booking 290000 fans...