Alt coins and tokens have their own structure.
For example one token will focus on exchange services and the other one will focus on other industry.
But bitcoin is the king and controls all prices by himself.
Compared to bitcoin, altcoins are having less advantage in my opinion too. But some people are claiming that they are making huge profits than what they are saving in bitcoins. but no one share how they identify that particular coin. Altcoins are having advantages but not in the same level of what we can enjoy from bitcoins.
At least, so far, even if it is for short or long term profit, it is still an impact. I know over time a lot of things will be changing for the better and that implies more to altcoins with very good and usable product and not just those with empty promises. So far, the altcoin space is purely speculative, or will I say the crypto space in all, and this makes it more like a pump and dump environment, so for now, I would say profit is the only advantage, but as time goes on when we start seeing real life usage, then we can start talking about the other usable advantages.