Some argue that bitcoin is too expensive now but i think it's more about the long term horizon. Just because it's not at the same low price as it once was doesn't mean it's too late to buy. Btc decentralized nature and its potential to become a hedge against inflation could continue driving demand for years to come making it worth considering even at its current price
That's the problem some people are having, they do not really understand bitcoin. Bitcoin is not expensive and anybody can buy to invest just according to what can be afford. No matter the price at which bitcoin is being bought their can be good profit that can be achieved from it if only one is being able to hodl.
Seeing bitcoin increasing in value it shows it is an asset to invest in that has good potential for profit. Their are some cryptocurrencies that their prices are not increasing, it is very risky to invest in coins like this. The increase of bitcoin price shows how bitcoin is valuable in the market than every other cryptocurrencies.