The beauty of Socal is the variation. You can live in many different areas, from Huntington Beach to Irvine, the South Bay to the Westside. Gardena is nothing like Santa Monica. They all have their differences, even temperatures. I live in Santa Monica, where it doesn't get over 80 deg. move to south OC, and it can hit 100 easy.
You can go to the beach, mountains, desert, or skiing all with-in a few hours.
As far as gas prices and such, do you really want to waste your life worrying about such things. I don't care, if it is $10 a gallon, I will still "choose" to drive, as it is more convenient here(due to weak public transit system). Do you want to be 70 yrs old and worrying about gas @ $20 a gal. too? Sorry for the rant, just find it bothersome that soo many people cry about the gas prices, and then jump in a vehicle and drive.
Anyways, Tim, I was born and raised here in Socal, and have lived in many cities, including Irvine, so PM me if you have any questions.