If you get in to any investment after the noise then you are too late, unless you can "find a bigger fool" as they say. The time to buy is before they are worth anything and get out before the peak.

Everyone buys at the top and that is not where the money is made.

My mate saw last of the Ferrari manual boxes and non turbo cars being blue chip end of era and bought a few at £60k, now 3 to 5 times that but he isn't buying more, the money has been made, but now the "investors" move in and make very little.