It would be useful to have multiple markers on a product's price history for when it's given away as a freebie (epic, amazon, etc.) or bundled (fanatical, humble, etc.) or goes from early access to full release.
For example, if a product has a timeline marker for when it was given away for free, near its all time low, then one could determine the freebie probably won't happen again and the price will likely keep rising away from its low point.
