I live in Colorado but still use the accountant in NYC I've had since 2003. It's typically around $400 -- I know it has gone up over the years, but I haven't really noticed or felt the increases.

If you're in the expensive part of California like me (SF), you could try to find an accountant in the cheaper parts of California (Central Valley for example).

Around $800, Bay Area peninsula. The cost has been growing quite a bit every year.