Beautiful, I ended up moving out of CA but I do miss Arrowhead at times. I miss the peace, the smells, the scents.
I don't miss the tourists and the commute up and down the mountain and traffic.
You couldn't go anywhere if there was a holiday (tourists flocking to the mountain and traffic was awful). If you live there full-time, be prepared to get snowed in/not go to work during the winter...when it finally stops snowing, be prepared with a snow shovel. I remember we spent 6 hours one Christmas Eve digging out our driveway and walkway.
If the weather (snow) is really bad, they will shut down the 18 and you could be stuck up there (I heard that happened a few years back and people were stuck and had no power for like a week or more). AWD vehicle is a must if you live on the mountain.
On the other extreme... if you aren't snowed in, fire season was a constant threat.