I've been tempted to go with Megascenery for California, but I'm a VFR bush flier at heart, so photoscenery usually looks bad at the altitudes I tend to fly (at least based on their Vegas/Reno and Oahu scenery I have), and now that Orbx will be releasing FTX NA Northern California and FTX NA South Alaska this year, Southern California can't be too far behind since I know it will sell a lot of copies.
I'd just wait until the give CA the 2.0 treatment. The Obrbx stuff is great of course, but I don't like flying from that to a region that is not. I kind of like a uniform appearance as I fly from state to state. Both solutions have it's advantages and disadvantages. When the FTX stuff goes global I'll definitely check it out. I just can't help but be intrigued about flying from LA to NY over tiles of the actual USA. To me that is simming.
Jason