Well this is absolutely true Bitcoin is the best digital asset now . Btc price and demand always high thats why every crypto enthusiastic people want to reserve Btc for future.
Yes aside from that people are keeping bitcoin because they thing of it as an investment. These are the common things that people has seeing bitcoin. Some may say that it is use as a form of payment and others would say that bitcoin is an asset. I may say either of those things they say are all right and correct.