Its quite good always to be optimistic and sometimes you think of what's the worst thing that can ever happen with which one prepare well. Considering the rate at which guyz are so expectant. I thought, what if the bull refuses to run? What will guyz do? 
It will depend on what you want to achieve and how you want to achieve it, if you are an investor that only cares about the money you can get then you will not get benefits out of bitcoin anymore and it could be a good idea to invest in something else, but if you are a trader this does not affect you since there are thousands of other coins in which you can put your money and get profits that way, now if you really believe in bitcoin and the technology then there is not a reason to sell if the bull run never happens.