That depends on how many X employees actually live in SF and how many commute each day back and forth from the same South Bay. When I worked in SF, I regularly

That depends on how many X employees actually live in SF and how many commute each day back and forth from the same South Bay. When I worked in SF, I regularly shared a train with the latter crowd, and there are a lot of them. I'm not saying they all work for X, but I suspect for a lot of people there the move would actually be an improvement.