it's the million dollar question , the problem is that we keep hearing the same question after bitcoin huge pumps and we never hear it when the price dump
theoretically it's always good to buy assuming that people will stay interested in bitcoin and will keep buying and using it
but no one can know if the price will keep going up now or will it have a correction for like 5 or 6 K , in the long run the price should go up but if people buy now there is a good chance IMO that they may wait for some time in order to profit ( this may not happen but still there is a chance )