Should I buy Bitcoin now or wait for some weeks? :-/
Buy now while the value is still around $4374 it will climb back again at $4500 before proceeding to $5000.
You dont have to wait for the time that you missed the train, now is always the time for buying.
it's not caused by the value of bitcoin but the segwit update should catch the bitcoin and bring the bitcoin to the mars. I've asked many people about the possibility to reach $5000 after the segwit 2x and a lot of them said the bitcoin will be more than $5000. The chance to buy more is in this time.