Golf Domain Names

I have 5 pretty golf domain names that are getting some clicks in godaddy's parked pages.
These are:

• http://golfclubvalue.com/
• http://golfdrivertest.com/
• http://golfpromotionalgifts.com/
• http://howtoimprovegolfgame.com/
• http://techniquegolf.com/

The average CPC is high, today I got a single click from USA and its profit was $0.42!
Despite I got $13.44 in revenues from cashparking its cost was $20 for 2 months. I'm losing money...