bitcoin has many technological limitations(1MB size of block, takes long time to process your transaction) and so had been hardforked to bch, btg.
it could only be used as currency since they do not support platform like ethereum does.
currently many icos are based on ethereums, cause they support tokens on their platform.
I think the only benefit of using bitcoin is that it is the very first cryptocurrency and altcoins are exchangeable in exchange because of btc's stability.
how do you think of bitcoin? will it still have much advantages&value as it now has?
It is hard to tell yet we can still dream or hope that bitcoin price will be huge in the future. The price of bitcoin today is still huge rather than its price two years ago which is almost one thousand dollars only. We can still use this advantage that we have to make ourselves good and use it for good things such as for our needs as well as out families or friends need or for the future.