Sure that's true. I take Vitamin D, and have a light that I use during the winter. However, it's really both the Spring and Summer that are beautiful IMO, which is half the year. I make sure to take my vacations during the other half. I also tend to get more work done during that half, since staying indoors is conducive toward it. But, per the article I posted: it's not a couple bucks, on average - you end up after paying your rent, and taxes - having double the money left over living in Seattle over San Francisco. And it will probably only move more in Seattle's favor, as Seattle keeps on building: http://www.spur.org/news/2017-06-15/keep-building-oakland. Vitamin D pills are cheap. Living in San Francisco is not.