Yes, bitcoin has a large number of users and they are very high as compared to ETH. ETH is also a potential currency but for now bitcoin is many years ahead of it and I think it will remain at the top of the list every time. Most of the cryptocurrency users trust bitcoin and used it in your every transaction as it is the best of all. The technology of bitcoin is a bit past technology but  it  has gained the interest of people  and it value has reached at a very good height  and is still increasing so I don’t think that ETH will reach  to the  height of Bitcoin.