March Madness Purchases:

1. TS Munich - Rosenheim Route Add-On $8.98
2. TS The Rhine Railway - Mannheim to Karlsruhe (covers part of the route south of Mainz) $12.58
3. TS Frankfurt High Speed to Karlsruhe (route extension for Mannheim to Karlsruhe) $13.47
4. TS Frankfurt to Koblenz Route Add-On $25.62

That just about covers our European trip. Only the Ljubljana section which still remains quite expensive.

EDIT: Bought the Ljubljana to Villach route. Tried it and realised we never actually rode on this section. We were bustituted. The route looks interesting though, mainly single track. Got a refund.