Every one has a price in which they tend to buy Bitcoin. For me personally it is 12 K, if I see Bitcoin below that and have money I see it as a oppurtunity to buy. Though this is not backed by any research, this drives my strategy.
I thought if we could collect all such opinions, we could arrive at a price which everyone thinks as normal. Because if you think about it, all pur personal opinions of Bitcoin increase or decrease the price (Barring instance of manipulations by whales

which we can't do anything about)
If you feel comfortable buying bitcoin at less than 12k then keep doing it, it is a bargain and while many could think that as expensive they are not going to think that when bitcoin reaches an amount way bigger than that, however you are never going to be able to reach a consensus about a good price to buy, everyone has their own standards and reasons to prefer to buy below a certain price.