I think, if people just stop to buy bitcoin , then it will go very down may it will reach 0$.it already went down because buyer's are reducing day by day. People must see Bitcoin, like a currency to continue the trade.
That's the reason why the price is moving downwards and if people will continue to stop buying then there will be a massive crisis for the bitcoin economy. We have seen the effect from the people who are afraid to buy bitcoin because of the FUD and that pulled down the price of bitcoin. Just think that there's only a FUD but many believed to that and they stopped buying bitcoin.