Maybe it was in the past, somewhere about 2011.
But now it is just too popular and lacks the volatility it had before, so it can't be the best choice for a trader.
It is still one of the best choice for a trader to make money because bitcoin is still volatile and there is also called altcoins which most of the traders go because they are more volatile than bitcoin and having a good knowledge about trading and some fundamentals will be a good help for you to get rich with trading in cryptocurrencies.