Here's just a quick idea on why I'm so bearish.
ETF's, the response we got was a clear "we will not ever do this until the wider Bitcoin ecosystem is regulated". So if you're a greyscale, coin etf or solidX - Why wouldn't you dump some of those BTC straight away while you're in a profit?
As for VC/Investment, sure there is a lot, but I think it's started to slow down rather than accelerate. Back in 2014 every post on reddit was about another VC coming onboard or another round of funding secured for all the startups, I just don't see that in Bitcoin now, but in Ethereum it's growing.
Don't get me wrong, it might not be 700, it might be 800 or 900, but in terms of growth potential in the short-mid term, Bitcoin doesn't have it because it needs this scaling debate to end, 1 way or the other.
RE: Are Bitcoin early adopters moving to other crypto-currencies?