Yes, that's true. If you had told anyone ten years ago that you were going to sell Bitcoin for $100K, they would have considered you crazy, not just greedy. So yes, perceptions can change over time.
But we must be aware that not everything that applies to Bitcoin applies to other coins. I mean, not all coins are like Bitcoin. I know people who bought shitcoins thinking they were like Bitcoin, that if they bought them at a cheap price today, they would appreciate hundreds of times in a few years. Instead, they lost all their money.
I agree with you, yes, those who are still stuck in this misconception that the current cheap shitcoins will behave like Bitcoin in the future, they will only face losses by investing in those shitcoins. Bitcoin is different from other coins in every way, so other coins will never achieve such a huge size like Bitcoin.
There are thousands of coins in the current market, but 90% of them are fake coins. So instead of destroying your hard-earned money by investing in such coins, every investor should invest only in Bitcoin.
Bitcoin has now achieved the milestone of $100K, in the future Bitcoin will achieve the milestone of $10M, there is definitely a possibility of this, but there is no guarantee that a shitcoin will only increase 2X in the future.
So investing in shitcoins means gambling, and the possibility of loss is 99%. So if an investor wants to invest for the future, Bitcoin is definitely the best investment for the long term.