In my opinion it can happen in the market can be very high and even lower. But it's almost easy to say the price is almost stable. It would be better if there were rules that would minimize manipulation acting on the market and also limit any trade to succeed.
simple to think about it. when you have lots of bitcoin, you sell it at a low price, and of course that can make the price of bitcoin go down. well, because it's a very good thing for bitcoin, sometimes when people make the price of bitcoin go down, others will see it as an opportunity. so, I think it will be real difficult, especially if you are alone.