So? Other teams were interested, it's not like we were the only ones interested. There is a lot that doesn't make sense.
Players who are on their last year of contract cost a lot less, you probably know that already, if he had a longer contract his price would probably be around 18mln. Leverkusen didn't want to sell him to Bayern, he asked who's Napoli when they contacted him.
I don't think we will pay 15mln for Radja, 10-12mln would be more realistic and I'd rather pay more for Radja then get Behrami or Palombo for the sake of saving some money.