I have a 2006 legacy outback with about 40k miles. One morning I tried to start the car and the key would not turn. Steering wheel was not locked. I got my second key and it turned easily. When I compared my two keys the key I use daily was excessively worn. I have my car key, key fob and one house key on the key ring. When I went to my dealer they told me that the wear was due to excessive weight on the key ring (hello?). Has anyone else exprienced excessive key wear. It's costing me over $100 to have new keys made and I'm afraid the same thing will happen again.