But with the German Twin Pass after five days the extra days cost just about $23 a day p.p. or about 16 euros a person per unlimited travel day - so this may even be better than the Lander Passes and you can ride any train anytime - no restrictions - and from a place Freiburg in the Black Forest there are lovely day trips to do into the hills - like the sweet scenic train ride to Titsee I recently took and then did a circle tour of scenic train lines back to Freiburg - some of these trains were IC trains which would not have been valid with the Lander Card.

and Munich has lots of nice day trips like to Salzburg, Austria certainly one of Europe's most gorgeous cities - just an 1.5 by fast train but longer if you had to stick to regional trains - so since the extra days on the German Twin are so so cheap factor in any day trips you may want to do and get an extra day to cover them IMO.

and many German cities have S-Bahns or commuter railways that slice thru the hearts of towns - like Munich, Frankfurt, Berlin, etc and are very utilitarian for the tourist - and since S-Bahns are run by DB, the German Railways, railpasses are valid on them - so you can just say after using your pass to get to Munich then run about the city by S-Bahn free on that same day as your pass will cover it. Of course you would not use a day on your pass just to ride S-Bahns but if arriving that day you would use them gratis the rest of the day - not even having to buy tickets.