I think one of the reasons why Bitcoin trading is the best and the best is that when one trades only Bitcoin, his profit will be less than other coins or tokens and vice versa the chances of losing from other coins or tokens will be much less. I personally think that Bitcoin can be the only product for long-term trade management or long-term planning.
Do you think there could be anything other than Bitcoin in terms of long-term planning?
It is the best to some people and mostlly to traders that has large amount of money to trade, the trader that have little amount of money to trade do with altcoins, they are scary to put money on but they are the best to people who cannot move the market like Bitcoin does and it help them gain good amount of money even with little starting capital they have to start something. An alternative best to bitcoin also in midway holding of altcoins when the market is down, buy some and when hypes comes in, sell them and remove your starting capital and then follow the process again.