My wife is a former Marine as well, in the corps. for 5 years at Pendleton, but she agrees with me and would move back there in a heartbeat if the opportunity arose.
We probably just like different areas. I live in a secluded house that is built like a log cabin from inside/out. When I look in my front yard, I see miles and miles of farmland i.e. cows, horses, flat land, straight two lane highways, etc. but when I look behind my house I see mostly hills. At the same time, I can drive 15 miles and see red lights, malls, hotels, restaurants, shopping centers, gas stations, car dealerships, etc. That's my preference. California is just way too fast paced for me. I'd prefer to live in the same type of area, but be a little closer to the beach is all.
Plus, there's not much to do in San Diego for an outdoorsman. I love to hunt, fish, go hiking, camping.