That's right, BTC is always a good choice and does not disappoint.
who told you that bitcoin doesn't disappoint, bitcoin will disappoint you, that's why many people do encourage others that they should not purchase or invest on Bitcoin with everything they have, secondly, we should not use bitcoin investment as our main hustle,rather it should be our side hustle
Secondly, You can invest on Bitcoin now and tomorrow the price devalue, so we should not be looking as bitcoin price is going up everytime, and we should consider some factors of bitcoin knowing that the price is not stable, might not disappoint you base on the duration of your investment on bitcoin, some who invest short-term do experience lost and people who also invest on long-term also experienced lost, so investing in Bitcoin is of the person's risk. But it's not guaranteed that you will make profit.
It's an investment for the future so it shouldn't be used as a main hustle cause if so the investor would be needs to take profits when it's not the right time, which is against the idea of Bitcoin Investment. An investor would need to use some percentage of their income on a specific interval that's suitable to them, be it weekly or monthly to buy and hodl Bitcoin fir long-term and still have some reserve funds for other activities instead of using all their income for Bitcoin investment. Anyways, concerning your second statement, I put it to you that volatility is not a issue if you use the DCA method of Bitcoin investment, you don't need to be worried about the price dropping or not since the DCA is very effective when it comes to recovering lose and maximising profits. Bitcoin is not a stable coin, therefore the price can never be stable, volatility would always occur and that's where the DCA plays a good role.Bitcoin is less riskier and more preferable to other Cryptocurrencies.