Thanks guys, looks like we have all kinds of differing opinions.

I think I'm going to do a hybrid, I'll call it short-term DCA.

I plan to every week invest about 25% of my total principal.  I will be taking my best guess what the biggest dip of the week will be and buy then.
So after a month, I will be done entering the market.

It's like buying the mini-dip over the period of a month.  After a month, the new low is clearly higher than last month's low in this market.

I can't imagine BTC will be worth 180k by year's end but that's what I hope.  I would be happy if it did 100k.