Coinbase is ridiculous, I was really waiting for this dip and was thinking 13k to 11k is what I thought will be a good entry point to convert more of my fiat to BTC. But when the price dipped to 10.3K , coinbase would not let me buy at all. Until it crossed 11k

Wrote about dip buying here : https://steemit.com/cryptocurrency/@aram1231/the-long-awaited-correction-and-btfd-opportunity-did-you-buy-like-crazy