Technical Take nicely sums up why being bullish now may not be a smart move:
To embrace higher prices with sentiment so extremely bullish, you must embrace the notion that we are in a new bull market. You must embrace the notion that higher oil and higher interest rates don't matter. You must embrace the notion that second derivative growth will lead to real, sustainable growth. You must embrace the notion that our housing and commercial real estate troubles are all behind us. You must embrace the notion that a PE of 150 on the S&P500 doesn't matter. You must embrace the notion that we can have an economic recovery without any meaningful change in unemployment. And we can go on and on and on...