Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Tokyo (98% of total searches to Tokyo Prefecture). The next most popular destinations are Musashino (1%) and Fuchu (1%). Searches for hotels in Chōfu (1%) are also popular.
KAYAK users have found double rooms in Tokyo Prefecture for as cheap as $50 (Tokyo) in the last 3 days. The average price is $432.