There is no such thing as the normal or standard price of BTC.
I understand that the title of this thread is a bit misleading, but it perfectly demonstrates how people ignore the OP and just talk about how there isn't a normal price, etc.
Quoting the main part of OP.
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.
In other words, what is the price that you would start to consider buying at? Obviously, it's all based on the phases this market goes through, which basically means that while you may consider to not buy at current levels, or the levels below that, you may do so at a later point if have more confidence in the market for example. In that case you can choose to stay in fiat instead of aiming at a target price.