The problem I have with Bahn is there website is so confusing! its really difficult to navigate. If you go to
Rail Pass and select " City-to-City Tickets" on left side its real easy to book a ticket and the pricing is no different.
If you plan on making several stops I think the most cost effective way is to pickup a
German Rail Pass. You can choose from 4-10 days of travel within a one month time period at a fraction of the cost of purchasing each one individually.
Dan