Whether or not to buy bitcoin now with its price above $ 40,000 depends on how long we make such an investment. It is assumed that in the long term, bitcoin will increase in price several times. However, no one can give any guarantee of this.
At the same time, bitcoin has been growing in value for a long time without correction. This is not like him, and such a deviation from the norm is supported by the high expectations of market participants in its growth and real investment in bitcoin even at such a high price. However, the time for correction is still approaching. Why buy bitcoin at such a high price if after some time it should still go down to a correction?