I want to ask, many people are talking about bitcoin technology, they say bitcoin technology is old and outdated, why bitcoin prices are still expensive, why do so many people also buy bitcoin, according to you, what determines the price of bitcoin
You're right, we can say that it's already outdated when we compare it to other cryptocurrency
but if we will talk in general then no doubt that btc is the newest form of monetary system.

Bitcoin still remains expensive simply because it has the highest number of holders among others. And since this is the most trustworthy coin in the market (that's why he is 1st), the demand for it do not fade meaning, investors still continue to buy making the price soar high.