Just remember : it doesn't matter how many manipulators out there try to crash this, it only fails if we collectively decide to give up on it. If we keep our faith in it and enough of the currency ends up in stable hands, it means less available for people trying to end it.
Only the ones that have BTC or are willing to buy it, have a vote.
Ergo, 99% of the world's population do not, as they have never owned a BTC nor are willing to consider buying it in 2013, most often for the reason of not yet knowing about it. No matter how much some of them hope and believe that the price will go down, it will not do it because of their actions, (since they never acted).
If early adopters and disheartened speculators want to sell it down to $20 and buyers are greedy enough to collectively wait, well, it will go to $20. That is within the realm of possibility. Then we would be sitting on a mere 100% YTD gain. Single digits, no way. At that point I can buy the new supply daily, which kind of stabilizes the freefall
Addressed to late speculators: Nobody forces you to sell your coins at $50. Why would you do it now, as you were not willing to sell them on our way up to $500. There was less supply to $500 that there is to $100 now. (Most of the "supply" now btw is fake walls - aha! on topic!! - of the people who are accumulating more)