Hype and greed have done their job before, it will also happen in the future, any ATH is someone's profit and someone's pain, perhaps a hundred years from now, the price for bitcoin of $80,000 will look like a rollback on the next bearish cycle, unless of course something extraordinary happens.
Yes you are right, the price we now see as the previous bitcoin ATH will probably be the lowest price for the future.
I agree and I would also say this is the position the current Bitcoin price is at now. The ATH in 2017 was about $19k+ and we can see that after the last new ATH of $69k+,
BTCitcoin is currently trading around what used to be its ATH price once that is now been considered a bear market. Definitely some time into the future, the $69k Bitcoin price will be considered a bear price too. Bitcoins price history has thought us this much regardless of when you buy, as long as you hodl you will make your profit.