Of course I totally agree that bitcoin is one of the most potential crypto assets to invest in. The risks are certainly well known and I don't think that's why people don't say it king. In the long term it is certainly more likely to get a higher price, and each cycle is something to look forward to. You have to be sure that the risk is worth the return, so don't hesitate to get more bitcoins in your portfolio in the long term.
Anyway, currently at almost $19K, that's going to be even higher in a while.
Bitcoin has always been very volatile, the price is already 21k but it can fall as quickly as it rose. But now, as before, the price is still very attractive for buying, even if the future the price reaches ATH from its current value, then your investment can already be considered very successful.
That what we are seeing now seems too manipulative, I doubt that it will continue further and reach large values, most likely after this local growth the price will fall again for a while.