Office space is usually the 2nd biggest expense for any business, startup or not. but prices certainly get inflated with vc funding and high demand. aside from the price, office space is really, really important for attracting talent and creating a productive work environment. but I agree, it's so expensive and we try desperately to find the best options for the startups we work with in order to achieve these things but also be cost effective. another issue is the cost of living, which makes it hard on employees. We really want to see more housing (both market and affordable) and more office space developed to bring down the prices and let more people work and live in SF.