Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Stuttgart (47% of total searches to Baden-Wurttemberg). The next most popular destinations are Heidelberg (21%) and Freiburg im Breisgau (20%). Searches for hotels in Konstanz (12%) are also popular.
KAYAK users have found double rooms in Baden-Wurttemberg for as cheap as $26 (Karlsruhe) in the last 3 days. The average price is $245.