I generally view things within 30-40 miles of the coast to still be in the coastal area, but people's mileage may vary. I was thinking more of the Bakersfields, the Barstows, etc, etc. Those places are hell holes.
Well, guess my post is moot. To help people understand why people would want to live in CA, let's take a look at the entire state and not just the major cities.
Southern California: I am going to use Irvine as my point of reference as that is a good central location that has access to various points of interest in CA. From Irvine, it is 45 min. to 1 hour to Los Angeles and the Los Angeles coastal cities of Santa Monica, Venice, Malibu, etc. It is about a little over 2 hours to get to Santa Barbara. All of these beaches are amazing. From Irvine, it is 20 min. of local driving to Newport Beach, 30 min. to Laguna Beach, 30 min. to Dana Point, 45 min. to Oceanside, and 1.5 hours to many of the beach cities of San Diego.
It is 20 minutes to get to Disneyland, 1 hour to Lego Land, 25 minutes to Knott's Berry Farm, a little over an hour to Magic Mountain, 1 hour to Universal Studios Hollywood. It's 3.5 hours to Las Vegas, 6 hours to Yosemite. It's about 6 hours to drive to Northern California or about $100-$150 to fly to Norcal in an hour, roundtrip. It's about 1.5 hours to the desert preserves of Yucca Valley, Joshua Tree National Park, etc. These are desert areas with unique and beautiful rock formations and desert wildlife. It's about an hour boat ride to go to Catalina Island. We have Long Beach harbor to hop on various cruises throughout the Pacific.
Regarding property size that alot of people have complained about, I have a decent sized backyard where my dog had lots of fun in. Not to mention parks, running on the beach, going to Yucca Valley where my family has property. Our backyard there consisted of 10 acres of unobstructed nature, so you can imagine what it's like to be a dog there. The land was not particularly expensive.
The only place in the US that has a comparable diversity of food to California is New York City. We have a huge Indian population in Cerritos. Huge Chinese populations in San Gabriel. Huge Hispanic populations throughout. One of the largest populations of Vietnamese in Westminster. Large Korean populations in Garden Grove and Los Angeles. Japanese people throughout Huntington Beach and Los Angeles. Little Ethiopia in West LA. Western food and celebrity chefs a-plenty. These are just off the top of my head.
Northern California: One of the most beautiful cities I have ever seen. Spectacular bridges, wondrous views of the ocean, etc. Amazing food and while the people of SF can be quirky and smug, they are only widely noticed because the squeaky wheels gets the grease. The mass majority of people are pretty much like everyone else in the US. As others have mentioned, Norcal has very close proximity to the Redwood Forests, which are some of the most humbling forests you can walk through.
Norcal is also close to Napa Valley, Monterey Bay, Santa Cruz, and various other spectacular, smaller towns. I've noticed that many posters who are trying to detract from CA state that it is terrible to live in the city and that they live an hour away from their major cities and can freely drive to the city. These statements seem to make it seem as if every single person in CA lives in the major cities of SF and LA. Lets not forget San Mateo, San Jose, Pleasantville, Burlingame, etc. in Norcal that are the suburbs all within an hour to SF.
In SoCal, Irvine, Anaheim, Rowland Heights, Newport Beach, Hungtington Beach, Mission Viejo, San Juan Capistrano, Laguna Hills, etc. are all within an hour to Los Angeles and 1.5 hours to San Diego. These are all areas that have a decent amount of land space.
Lastly, if you know any farmers in the Fresno area, then you can get yourself some of the most ridiculously delicious fruits in the world. I have yet to find a fruit nearly as good as the White Peaches that the farmers save for their own consumption. If I could imagine what ambrosia tasted like, it would be this. In conclusion, every area has its benefits but as far as I can tell, CA's significant benefits far outweigh the negatives that people have listed.