Hmmm, on October 8th I was at a local Sprint store in a mall here in L.A. County to get my daughter her first phone (i4S). While I was there I decided on the spot to reserve a black 16GB i5 for myself to get a family plan going (replacing my four year old Samsung phone with AT&T). I was told it was a two week wait, but they called me the next day to say they had them ready for pick up.
It's my first Apple product and first modern smart phone. I like it a lot. If any other So Cali residents are still looking, try the Sprint store at the Arcadia mall to see if they have what you want.