The truth is that Bitcoin has been consistently bullish over the past 14 years and other cryptocurrencies have not. Perhaps beliefs about overnight wealth need a lasting change. Only Bitcoin is the crypto with the most sustainable increase over time. Don't worry too much about discount periods, see them as buying opportunities.
Bitcoin may be technologically outdated, but the core value and original meaning of an inflation-resistant currency is the most important factor for us to believe.
Disagree with this statement, what about cryptocurrencies like Ethereum? It was created in 2015, and so far, it is also an impressive growth cryptocurrency and even today, it is giving higher returns than bitcoin. If bitcoin can rally from $3k to $69k in 2021, ETH can rise from 2018 lows of $80 to nearly $5k. It outperforms bitcoin in terms of profitability.
One more thing, bitcoin technology is not old, not outdated. Simply because it has never been hacked but with altcoins most have been hacked a few times so I don't consider altcoins a technology.