Lets put to bed this myth about German football being cheap.
Yes you can buy tickets for 10 euro, this is for the standing area behind the goal and is mostly taken up by season ticket holders.
The normal price for a ticket in Bundesliga 1 varies between teams Munich, Dortmund category 1 and will cost anything from 20 to 70-80 euro.
Category 3 teams like Fürth, Augsburg will be less but still over 20 euro and up.