If your company resides in California and you register your corp in Delaware you'll still need to pay CA's minimum franchise fee of $800/yr in addition to whatever fees DE assesses.
I don't know much about the rest of the process, but it looks like the name checking part is slightly less convenient in CA: "A free preliminary check of the availability of a name can be requested by mailing a completed Name Availability Inquiry Letter (pdf~62KB) to the California Secretary of State's office in Sacramento. Email or online inquiries cannot be accepted at this time."
Setting up an LLC in California will cost you $800/year..so this out of state C-Corp seems like a cheaper option