I think this is a pretty deep pseudo-hidden-but-not-really issue in the Bitcoin community and economy. Once a prospective new user starts looking into Bitcoin, it takes about 10 minutes to figure out that there is a smallish group of old-timers who are holding seemingly very large amounts of coin relative to what would be practically attainable through purchases.
If, indeed, Bitcoin is intrinsically deflationary, (I have some fun theories about this but I'll beat that horse sometime later when I'm in a more curmudgeonly and annoying mood ), then, overall, most new entrants to Bitcoin are going to have to deal with this: the entire Bitcoin economy is largely concentrated in a relatively small group.
Regardless of how one feels about that from a "social justice" perspective, it seemingly works against the motivational incentive profile of a typical prospective new medium-of-exchange Bitcoin user (as opposed to a speculator or prospective miner for example -- by most accounts, these are the people we "want" in the market).
Specifically, the whole point of Bitcoin -- at least, I imagine most prospects feel this way, I may be wrong -- is to create an instrument of exchange which democratizes monetary policy and removes arbitrary state-imposed legal impediments to unencumbered free exchange, for better or for worse.
If that's the appeal for Joe Newbie, the idea that a sort of market oligarchy exists -- specifically, if Joe Newbie comes to believe that there is a deeply entrenched old-guard, every one of whom has sufficient holdings to sell through the entire market and basically turn the "deflationary" BTC into a Zimbabwe-style cautionary tale, that doesn't feel very liberating. Actually it feels an awful lot like a fiat currency.
This is probably why the alternate currencies have held such appeal despite not really offering many new technical innovations. If Joe Newbie is gonna do this, after all, he'd obviously want to be the old guard if that's the way it's going to be, rather than get a bunch of wealth tied up in a currency that only retains its value so long as some kind of scary detente maintains between various old-guard oligarchs, many of whom may for all he knows have immediate plans to divest themselves of their holdings but simply are smart enough not to do so in a way that yields grossly sub-optimal returns.
OTOH, what can a guy reasonable person expect to happen? Compared to anything in Bitcoin-land, we more-or-less all live in highly regulated economies with absolutely enormous regulatory and monetary control structures which, with a few notable exceptions, all have evolved complex homeostatic systems for the maintenance of price stability.
Some might not like to admit it around here, but the global fiat-currency economy gradually evolved into what it is today over many years of trial and error and it has an awful lot of things going for it. The technocrats in charge of fiat currencies are almost always very concerned with price stability (how successful they are in achieving it varies of course) and these "traditional" economies have developed all kinds of elaborate policing and insurance practices which do provide people with some confidence and maybe even some actual ability to recoup their losses when they get ripped off.
Now here comes Bitcoin which deliberately eschews all of that, and has a small economy consisting mostly of crooks, techno-activists and monetary policy extremists. And we are all going bonkers due to a 66% price fluctuation!? Meh... I guess when a chart goes up and up and up for a while, even the wisest of us have a hard time accepting and anticipating it when the party is over.
We just have to get back to business guys. The solution, as everyone has already said anyhow, is to just ignore this and use Bitcoins for useful stuff and hope the guys with the nukes keep 'em muzzled. If that can happen, everyone can possibly get what they came here for. But the present circumstance really shouldn't cause too much panic imo. BTC shows a lot of promise but it's still in an incipient stage and that's OK.
Caveat emptor: this won't be the last time something like this happens, so diversify and be happy -- or be willing to lose, if you want to gamble.
tl;dr I guess, but I don't have time to write all this crap and edit it so I guess you get what you paid for