Whats the point in keeping the price down?
To get more coins cheaper and cheaper, and when the time is there sell high cause i believe the person holding the value low at this moment also knows it can rise in value to make a nice profit.
^exactly this. The 1btc buy pretty much proves this. No reason for a single 1btc buy order that takes prices up 90% unless that person were adding more stock to their holdings.
Someone is definitely keeping prices down to tempt large sell orders so he can pick them up.