$70,000, $50,000 - honestly, it was really expensive that normal investors can't make it and they fall into investing shitcoins. Though DCA can be applied, however, the price is still high and OP was right, it was not a fair price anymore. As we drop down to $17,000, many people got happy but can't hide the fact that many were also disappointed because they are buying high and expecting a price increase after buying.
That is why we should never lose this opportunity as this never takes so long to stay, many speculations for the price surge in the coming years and we have to anticipate that moment before it comes.
It would be pricy if you are aiming for one Bitcoin but if not, you may invest a certain amount of it. Problem is the peak price; the market value is volatile in nature and it won't be a good idea to buy whenever the market price is high. But same thing somehow happens during down lows; people are worried to invest because of their worries that the market price may not increase soon. What I am trying to point out is; no matter what the price of Bitcoin is, if the investor is not ready to engage, he/she won't. High expectations of high market price is a bit normal simply because Bitcoin managed to break limitations and expectations from it, many times already so even if the price would seem to be 'too high', there will still be investors to invest and hope for a higher market value in the future.