To me, commuter implies a certain level of willingness to mess it up. I probably wouldn't want to lock up a Vanilla in front of a Kwik-e-mart. Even if no one stole it, I'd be a nervous wreck the whole time it was out of my sight, and that would be after spending 20 minutes finding the perfect parking spot that would ensure no accidental scratches.
Sacha makes amazing bikes, but I couldn't subject any of them to 'workhorse' status.
Now, IRO and Kogswell both make some nice frames that would be great as workhorse commuters that I wouldn't cry for when they get dinged.
If you only commute from your locked garage directly to your corner office with plenty of indoor bike parking, and make no side trips by bike, then I might consider it, but I do so much with my commuter that I would be limited by having a Vanilla, it would hold me back.
peace,
sam