Nothing of essence, of course. I strongly believe Bitcoin is a bubble that will burst this year although I definitely recognize the innovation and awareness of certain problems that it brought. But at least you see some legitimacy and a level of assurance in VCs putting money into Bitcoin startups where Dogecoin and the likes are just honest scams, not even bubbles. What kind of a person would put money into something called BBQCoin or Junkcoin?
I agree that the one cryptocurrency doesn't have to be Bitcoin. What I left unsaid is that so far none of the altcoins provide enough improvement over Bitcoin that it's worth breaking compatibility.