Do you think it's because teams can pitch around Trout without fear as opposed to pitchers not afforded that same luxury with JD? I'm referencing his BB rate being the difference in his wrc+
http://www.cbc.ca/m/news/canada/toronto/most-livable-cities-include-vancouver-toronto-calgary-in-top-5-1.3194833
Affordability isn't one of main criteria for obvious reasons. The better a city is, the more valuable properties will be