Not sure what you understands as a dip. Thee is bottom. That happened in December. We had long 5 months from November to May when you were able to buy cheap Bitcoins. Yes those months are behind us. From now on yes you might still be able to get cheap Bitcoins but at rare chances. Maybe hope someone will have fat fingers on exchange and crash price but you need to have active buy orders for that. But this dont mean Bitcoin is not worth to buy anymore. It is since price in two years time should at least at some point breach $100k. So buy buy buy whenever you can, no matter that you buy at higher price then $5000.