Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Stuttgart (58% of total searches to Baden-Wurttemberg). The next most popular destinations are Karlsruhe (17%) and Heidelberg (14%). Searches for hotels in Rust (12%) are also popular.
KAYAK users have found double rooms in Baden-Wurttemberg for as cheap as €18 (Stuttgart) in the last 3 days. The average price is €172.