Cheap accomodation for munich festival - any ideas munich much be easily accessed by train?

Hello myself and friend are going to oktoberfest and i am trying to fing cheap accomodation. i am happy to stay out of munich as long as we can reach munich within about 30min by train. thanks for help it is much appreciated|||You might be a bit late to get something cheap I will add you hrs the biggest hotel booker in Germany including a best available rate guarantee.Check out the cities in the surroundings of Munich mostly towards the north of the city.If you find something check if there is a train or S-bahn connection.Do not hesitate to phone the hotel and ask the guys there.Good luck you will need it.