Why i believe bitcoin will be increasing in value:
Its the first cryptocurrency and it gets the most attention.
It has the greatest computation power making it the most secure digital coin in the world.
They have one of the best development teams in the world working on the implementing lightning network update (Off-chain transactions and lower fees) - Thus making it eligible for mass adoption.
It has a limited supply of 21,000,000. - People are referring to it as Digital Gold.
So therefore, in a best case scenario, if bitcoin manages to remain the king of the cryptocurrency market until 2140, we could say that 1 bitcoin could be worth $100,000.00 - But by then, i dont think the US$ will be worth anything.