Those people haven't lived in California...seriously. everything is here.
Snow, desert, ocean, camping, huge shopping centers, endless entertainment, so many varied amounts of people and experiences to have.
I don't know any other state that can offer all of those things year around.
You live in San Francisco, so I'm not going to argue with you about the awesomeness of YOUR California. MY California is in SoCal. This is where gridlock traffic is an everyday occurrence, where drivebys are so common we've begun blaming the victims for walking out at night, where the density of the population is so high that people have stopped caring about humanity and self-preservation and simply lean into the lanes of oncoming vehicles to signal their desire to jaywalk.
Your California is a cool blue color, populated with polite artists who have the luxury of seeing the Golden Gate Bridge every day, enveloped in a thick wonderland of fluffy fog. My California is brown and hazy, a mixture of endless heat and rising smoke pressing against the Valley, clogging my nostrils with the sweaty stench of 22 million lunatics, assaulting my ears with the the relentless bullshit of Ryan Seacrest, issuing from the orifice of every car radio in my radius.
Your California presents you with the scope of all ecology. Mine beats down on me with an unforgiving sun, 350 days of the year, and then sprinkles me with a pathetic dose of rainwater for a fickle weekend. You look out the window and see the beautiful sights of the Bay area. I look out my window and spectate as a dozen Alley locos kick the crap out of one of their own. Is he trying to get in or get out? I don't care.