Maybe anything under $69k should be considered a dip?  Especially if someone is trying to build a stash and is in the relatively early stages of such.. meaning that if he has ONLY been accumulating less than a full cycle and if he did not come into the space with already BIG investment portfolio in which he could afford to lump sum allocate into bitcoin at earlier stages.

For example, there is a difference between a guy who stared out at $100 per week in the last 4 years and has accumulated right around 1BTC (with $20k invested), and maybe the guy who started out with $200k investment portfolio who might have invested $22k into bitcoin within the first year of investment ($400 per week) and then maybe invested another $23 k in the next 3 years (at $150 per week), so maybe he might have $45k invested in total ($22k first year and $23k next 3 years), but he also might have accumulated close to 3 BTC rather than just 1 BTC even though the main thing differentiating him from the newbie investor is that he is able to start out with stronger DCA approach (that might be considered a kind of front-loading of his investment) and maybe to be a bit more aggressive because he already has spent time building up his investment portfolio prior to getting into BTC.