I'm trying to book tickets on the 11:38 am 6/28/15 train from Munich to Venice for 2 adults and 2 children (10 years old). When I put the information into Rick Steve's booking website, the price comes up at $344 for the 4 of us. When I go to the DB Bahn website (which Rick recommends) the price for the 4 of us comes up as $98. I checked several times and it states 2 adults, 2 children, 2nd class, one way. Am I missing something? Why the big difference in price?
Also, Rick states that the Bahn website doesn't always tell you if you need reservations and I don't want to miss this train. How do I really find this out?