So what would you if you had immense power by controlling the world's central banks and then suddenly Bitcoin comes along and threatens to take away all your power?
Sit around and do nothing?
I won't sit here and do nothing.
Seriously, it matters a lot if you are looking to make a huge investment. If you break it into pieces, remember what you buy today has an extremely good chance of being higher within a year or two (or much sooner)