I've lost out on so much potential coin by not buying in lower, despite the talk of this next bubble.
The last time the price was below $400 per B⃦, was also a time when crypto currency was younger and more unknown and there was even more risk and uncertainty than there is today.
Some of those who 'bought in lower' lost it to Gox; or lost the value in some other way. So anyways, buying in today is somewhat lower risk, so less reward.
I don't expect massive growth in value of a BTC vs Fiat Units in the short term, and the current price probably reflects a bit of speculation.
It's entirely possible that almost everyone who is going to adopt cryptocurrency for a while has ("the early adopters").
Historically speaking -- it is not unusual for a new idea or technology to
quickly saturate the market of innovators, and then growth stalls, and sometimes dies there, because mainstream audiences are fundamentally different than the early adopters, the mainstream is less likely to pick up new ideas -- old traditions are strong, and new ideas are adopted at a lower rate with reluctance and risk aversity.
There are lots of theories about 1 B⃦ becoming worth a large amount of fiat.
But it's not really going to happen, unless and until crypto currency begins to be adopted by the average person who is risk averse and hesitant to jump onto just any cool new idea that comes along, and if you are waiting for to happen --- it is probably 6 or 7 years, if it will happen at all.
For now, most chance to growth of BTC will be more early adopters coming onboard; your best bet is new startups, banks/bankers, hedge funds/wall st. traders, small retailers, retailers that themselves are trying to get into the market as a new competitor --- in other words they are so small, even the "innovator" / "early adopter" markets are valuable to them --- and by offering to do business in BTC they have an edge, that may get their business some new customers.