I was watching Fox business and a while ago they were saying the best historical indicator is that the market has a long ways to go yet. Of course, if I believed that 100% I would sell off all my other investments and buy stocks. Not going to do that, but I have invested more in stocks just in case the market goes way up.
It could be that investors (not doomsday preppers) see stocks going up for a while yet and they are selling off gold to take advantage of the trend. If so, then gold could be headed down and if we get into panic selling it could go under $1,000 an ounce. Fear works both ways and it's a more powerful motivator than greed.