Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Jindabyne (56% of total searches to Kosciuszko National Park). The next most popular destinations are Thredbo (33%) and Perisher Valley (11%). Searches for hotels in Crackenback (0%) are also popular.
KAYAK users have found double rooms in Kosciuszko National Park for as cheap as $64 (Jindabyne) in the last 3 days. The average price is $856.