Yes I think if you invest in Bitcoin when its price will increase then it is good for you. This is the only opportunity for long term investment. I think Bitcoin is the only safe currency, if you invest in this currency then you can make your future bright. There are many who want to buy it when the price is high but they may not know that if you buy it when its price is low then you can earn much more profit from it in the future.
Getting yourself worked up trying to outsmart the market is useless because Bitcoin is still very cheap at this present price if compared to how much it might get to in the future, so waiting for a dip or trying to buy in a favourable term as you think is another way to waste valuable time and buying opportunities, so as long as you are thinking long term, just buy once your discretionary income is available, in the future you will be happy with yourself that you made the right decision now that the opportunity is still available.