The 75,000 mentioned people who have moved to the bay area for tech have caused rent to rise by such a large amount, that even though we can afford to pay, it feels like a huge waste of our money
This is also primarily a political problem, as I wrote previously here: https://news.ycombinator.com/item?id=7382097 and as Kim-Mai Cutler cogently described here: http://techcrunch.com/2014/04/14/sf-housing/ .
Seattle has somewhat similar problems (http://www.smartgrowthseattle.org/sally-bagshaw-yesterday-to...), but they're not nearly as bad.