Should I change my cel phone number?

I'm currently looking for a new office space, and it's looking likely that I'll choose an office in the 650 area code region. My cel phone number is currently in the 408 area code, which is the adjacent region.

If you were a prospective new client phoning a potential therapist for the first time, how much would it raise an eyebrow if the therapist's cel phone area code wasn't congruent with their area code region? I'm trying to balance professionalism with the utter pain that changing my cel number would be. I suppose I could get yet another Google Voice line, but... that's its own set of hassles.

So, a poll:

[Poll #1911541]

Thanks!