Well, altcoins are definitely important to quite a lot of people, but definitely not me, i don't like short term projects, neither do i like to gamble, and these are both peculiar to altcoin investments. I know altcoin investors might disagree, but altcoins are basically risky pump and dump coins with no actual utility. Having said that, i invest in Bitcoin over altcoins because it has an actual utility and i am pretty certain that it is sustainable for the long term, that's the difference to most altcoins that survive only on hype and nothing else.