Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Taormina (95% of total searches to Etna). The next most popular destinations are Giardini Naxos (2%) and Giarre (2%). Searches for hotels in Gaggi (1%) are also popular.
KAYAK users have found double rooms in Etna for as cheap as $67 (Aci Castello) in the last 3 days. The average price is $288.