If the whales are secretly buying up Bitcoin than I will buy Bitcoin at the current market rate. Even if it goes to 2500$. Gives me sum hope in the crypto space. Only if I find out they are buying through forums etc.
if this is such a good idea?

once the hysteria has broken out, the train has often already left. not only at the bitcoin but in general. rather invest regularly and smaller amounts to balance fluctuations as well as possible.