LIke most of those that responded to this post, I ride solo 90% of the time. I live in the San Gabriel Valley also and there are so many courses that I ride, I never get bored. Part of the joy that I get from riding alone is that it helps me to sort things out (I know not everyone is religious but, I am and i spend the 15-20 minutes of a ride in prayer). I will do the occasional group ride so that I can test myself against others but, I say enjoy the time spent alone.