is there a general rule of having to live within "X" number of miles from an airport, even if you commute? Say I was commuiting out of sgf to dfw for my route, would I have to live close to sgf field or could i live further away if I chose? I realize if you live further away from a base or commercial airport, it's just added stress of having to drive to that airport each time you fly out. I don't know if there's a general rule or not though.