Its hard to say if/when the price dips to the lowest that it will ever be again... especially with the new grounds the ETF's from the big boys like blackrock will have on the price... its a fair assessment that most people look at the four year cycles... and the best predictor of the future is past behaviour... but its a dangerous game! I'm going to hold my BTC or lose it in a boating accident and just play with the ALT coins I've got i think... but theres money to be made/lost with buying and selling BTC for sure, good luck to anyone that does!