Well, we are in an open market so expect the manipulation already and besides manipulation is everywhere. Altcoins these days don't have enough investors to make their coins to pump just like what is happening to Bitcoin. You should consider lucky to have some Bitcoin these days since the most pump up coins these days is Bitcoin and the rest of altcoins is just following the trend.
Bitcoin was acknowledge as one of the leading asset, also the market has high volatilization that is hard to deal when we can't adopt and accept its consequences. What we are witnessing about bitcoin's growth must be appreciable, beacuase we are waiting this bull trend for too long and it is a bright way to overcome thrive.