what is the right price? What is the current price of a single Bitcoin?

In the world of cryptocurrency there is no mention of a single price. the price that you can found always refers to the last recorded transaction, and it will change in few minutes, often time less the minutes.
Every exchange makes differents prices.
this it is the most famuos site of real-time quotation
it make the price with the average of this exchanges: https://coinmarketcap.com/rankings/exchanges/
Also here https://coin360.com/ you will find a different prices
here you can find the different prices.
https://it.tradingview.com/symbols/BTCUSD/?exchange=BITBAY
And here you have a comparison of the prices of the different exchanges, then comparing the various exchanges you could understand where it costs less. And then checking the fee to understand where it is worth buying.
All this in a short time and trading perspective. Because in the long time view, if you believe in the project, the admission price doesn't really matter.
So being a hodler is convenient and makes you live better, by ceasing to control the price of the crypto.
thanks for reading