As I have seen mentioned in this thread multiple times - with the right amount of capital and experience there is actually much more opportunity for large gains when the market is down and short opportunities present themselves.
Shorting the market can definitely be a more difficult beast when it comes having an ability to control your emotions whether the position size is large or small. Having the right strategy and mindset when looking to short the market are the two key factors for myself and have continuously proven to be true over the years.